Created: 2022-08-26 09:30:51 [EST]
(Supp. No. 134, Update 2)
(Ord. 2019-0056 § 90, 2019.)
J110.3 Planting.
The surface of all cut slopes more than 5 feet (1.5 m) in height and fill slopes more than 3 feet (0.9 m) in height shall be protected against damage from erosion by planting with grass or ground cover plants. Slopes exceeding 15 feet (4.6 m) in vertical height shall also be planted with shrubs, spaced at not to exceed 10 feet (3 m) on center, or trees, spaced at not to exceed 20 feet (6.1 m) on center; or a combination of shrubs and trees at an equivalent spacing, in addition to the grass or ground cover plants. The plants selected and planting methods used shall be suitable for the soil and climatic conditions of the site.
Plant material shall be selected that will produce a coverage of permanent planting to effectively control erosion. Consideration shall be given to deep-rooted plant material needing limited watering, maintenance, high root to shoot ratio, wind susceptibility, and fire-retardant characteristics. All plant materials must be approved by the Building Official.
Planting may be modified for the site if specific recommendations are provided by both the Geotechnical Engineer and a Landscape Architect. Specific recommendations must consider soils and climatic conditions, irrigation requirements, planting methods, fire-retardant characteristics, water efficiency, maintenance needs, and other regulatory requirements. Recommendations must include a finding that the alternative planting will provide a permanent and effective method of erosion control. Modifications to planting must be approved by the Building Official prior to installation.
(Ord. 2019-0056 § 90, 2019.)
J110.4 Irrigation.
Slopes required to be planted by Section J110.3 shall be provided with an approved system of irrigation that is designed to cover all portions of the slope. Irrigation system plans shall be submitted to and approved by the Building Official prior to installation. A functional test of the system may be required.
For slopes less than 20 feet (6.1 m) in vertical height, hose bibs to permit hand watering will be acceptable if such hose bibs are installed at conveniently accessible locations where a hose no longer than 50 feet (15.2 m) is necessary for irrigation.
Irrigation requirements may be modified for the site if specific recommendations are provided by both the Geotechnical Engineer and a Landscape Architect. Specific recommendations must consider soils and climatic conditions, plant types, planting methods, fire-retardant characteristics, water efficiency, maintenance needs, and other regulatory requirements. Recommendations must include a finding that the alternative irrigation method will sustain the proposed planting and provide a permanent and effective method of erosion control. Modifications for irrigation systems must be approved by the Building Official prior to installation. (Ord. 2019-0056 § 90, 2019.)
J110.5 Plans and specifications.
Planting and irrigation plans shall be submitted for slopes that are required to be planted and irrigated pursuant to Sections J110.3 and J110.4. Except as otherwise required by the Building Official for minor grading, the plans for slopes 20 feet (6.1 m) or more in vertical height shall be prepared and signed by a Civil Engineer or Landscape Architect. If requested by the Building Official, planting and irrigation details shall be included on the grading plan. (Ord. 2019-0056 § 90, 2019.)
Created: 2022-08-26 09:30:51 [EST]
(Supp. No. 134, Update 2)
J110.6 Rodent control.
Fill slopes shall be protected from potential slope damage by a preventative program of rodent control. (Ord. 2019-0056 § 90, 2019.)
J110.7 Release of security.
The planting and irrigation systems required by this Section shall be installed as soon as practical after rough grading. Prior to final approval of grading and before the release of the grading security, the planting shall be well established and growing on the slopes and there shall be evidence of an effective rodent control program. (Ord. 2019-0056 § 90, 2019.)
J110.8 National Pollutant Discharge Elimination System (NPDES) compliance.
J110.8.1 General.
All grading plans and permits and the owner of any property on which such grading is performed shall comply with the provisions of this Section for NPDES compliance.
All best management practices shall be installed before grading begins or as instructed in writing by the Building Official for unpermitted grading as defined by Section J103.3. As grading progresses, all best management practices shall be updated as necessary to prevent erosion and to control construction-related pollutants from discharging from the site. All best management practices shall be maintained in good working order to the satisfaction of the Building Official until final grading approval has been granted by the Building Official and all permanent drainage and erosion control systems, if required, are in place. Failure to comply with this Section is subject to "Noncompliance Penalties" pursuant to Section J110.8.5. Payment of a penalty shall not relieve any persons from fully complying with the requirements of this Code in the execution of the work. (Ord. 2019-0056 § 90, 2019.)
J110.8.2 Storm Water Pollution Prevention Plan (SWPPP).
The Building Official may require a SWPPP. The SWPPP shall contain details of best management practices, including desilting basins or other temporary drainage or control measures, or both, as may be necessary to control construction-related pollutants that originate from the site as a result of construction-related activities.
When the Building Official requires a SWPPP, no grading permit shall be issued until the SWPPP has been submitted to and approved by the Building Official.
For unpermitted grading as defined by Section J103.3 upon written request, a SWPPP in compliance with the provisions of this Section and Section 106.4.3 for NPDES compliance shall be submitted to the Building Official.
Failure to comply with this Section is subject to "Noncompliance Penalties" per Section J110.8.5. Payment of a penalty shall not relieve any persons from fully complying with the requirements of this Code in the execution of the work.
(Ord. 2019-0056 § 90, 2019.)
Created: 2022-08-26 09:30:51 [EST]
(Supp. No. 134, Update 2)
J110.8.3 Erosion and Sediment Control Plans (ESCP).
Where a grading permit is issued and the Building Official determines that the grading will not be completed prior to November 1, the owner of the site on which the grading is being performed shall, on or before October 1, file or cause to be filed with the Building Official an ESCP. The ESCP shall include specific best management practices to minimize the transport of sediment and protect public and private property from the effects of erosion, flooding, or the deposition of mud, debris, or construction-related pollutants. The best management practices shown on the ESCP shall be installed on or before October 15. The plans shall be revised annually or as required by the Building Official to reflect the current site conditions.
The ESCP shall be accompanied by an application for plan checking services and plan-checking fees in an amount determined by the Building Official, up to but not exceeding 10 percent of the original grading permit fee.
Failure to comply with this Section is subject to "Noncompliance Penalties" pursuant to Section J110.8.5.
Payment of a penalty shall not relieve any persons from fully complying with the requirements of this Code in the execution of the work.
(Ord. 2019-0056 § 90, 2019.)
J110.8.4 Storm Water Pollution Prevention Plan (SWPPP), effect of noncompliance.
Should the owner fail to submit the SWPPP or the ESCP as required by Section J110.8, or fail to install the best management practices, it shall be deemed that a default has occurred under the conditions of the grading permit security. The Building Official may thereafter enter the property for the purpose of installing, by County forces or by other means, the drainage, erosion control, and other devices shown on the approved plans, or if there are no approved plans, as the Building Official may deem necessary to protect adjoining property from the effects of erosion, flooding, or the deposition of mud, debris, or constructed-related pollutants.
The Building Official shall also have the authority to impose and collect the penalties imposed by Section J110.8.5. Payment of a penalty shall not relieve any persons from fully complying with the requirements of this Code in the execution of the work.
(Ord. 2019-0056 § 90, 2019.)
J110.8.5 Noncompliance penalties.
The amount of the penalties shall be as follows:
1. If a SWPPP or an ESCP is not submitted as prescribed in Sections J110.8.2 and J110.8.3:
Grading Permit Volume Penalty
1-10,000 cubic yards (1-7645.5 m3 ) $50.00 per day
10,001-100,000 cubic yards (7646.3-76455 m3 ) $250.00 per day More than 100,000 cubic yards (76455 m3 ) $500.00 per day
2. If the best management practices for storm water pollution prevention and wet weather erosion control, as approved by the Building Official, are not installed as prescribed in this Section J110.8:
Grading Permit Volume Penalty
1-10,000 cubic yards (1-7645.5 m3 ) $100.00 per day
10,001-100,000 cubic yards (7646.3-76455 m3 ) $250.00 per day
Created: 2022-08-26 09:30:51 [EST]
(Supp. No. 134, Update 2)
More than 100,000 cubic yards (76455 m3 ) $500.00 per day NOTE: See Section 108 for inspection request requirements. (Ord. 2019-0056 § 90, 2019.)
SECTION J111 REFERENCED STANDARDS
These regulations establish minimum standards and are not intended to prevent the use of alternate materials, methods, or means of conforming to such standards, provided such alternate has been approved by the Building Official.
The Building Official shall approve such an alternate provided they determine that the alternate is, for the purpose intended, at least the equivalent of that prescribed in this Code in quality, strength, effectiveness, durability, and safety.
The Building Official shall require that sufficient evidence or proof be submitted to substantiate any claims regarding the alternate.
The standards listed below are recognized standards. Compliance with these recognized standards shall be prima facie evidence of compliance with the standards set forth in Sections J104 and J107.
ASTM D 1557 - Latest
Revision
Laboratory Characteristics Compaction of Soil
Using Modified Effort
J107.5
ASTM D 1556 - Latest
Revision
Density and Unit Weight of Soils In Place by the
Sand Cone Method
J104.2.3, J104.3 and
J107.9
ASTM D 2167 - Latest
Revision
Density and Unit Weight of Soils In Place by the
Rubber Balloon Method
J104.2.3, J104.3 and
J107.9
ASTM D 2937 - Latest
Revision
Density of Soils in Place by the Drive Cylinder
Method
J104.2.3, J104.3 and
J107.9
ASTM D 2922 - Latest
Revision
Density of Soil and Soil Aggregate In Place by
Nuclear Methods
J104.2.3, J104.3 and
J107.9
ASTM D 3017 - Latest
Revision
Water Content of Soil and Rock in Place by
Nuclear Methods
J104.2.3, J104.3 and
J107.9
Guidelines for Above-Water Backfilling of Open Pit Mines, Irwindale, California, Irwindale Drainage and Erosion Control Committee, November 23, 2005
Guidelines for Drainage and Erosion Control for Open Pit Mines, Irwindale, California, Irwindale Drainage and Erosion Control Committee, July 6, 2004
Guidelines for Underwater Backfilling of Open Pit Mines, Irwindale, California, Irwindale Drainage and Erosion Control Committee, May 20, 2005
Guidelines for Stability Analyses of Open-Pit Mine Slopes, Irwindale, California, Irwindale Slope Stability Committee, December 24, 2003
Irwindale Mining Bulletin No.1, Settlement of Mine Backfills, November 22, 2022
Created: 2022-08-26 09:30:51 [EST]
(Supp. No. 134, Update 2)
(Ord. 2019-0056 § 91, 2019.)
OF LOs A COUNTY OF LOS ANGELES
DEPARTMENT OF PUBLIC WORKS
‘To Enrich Lives Through Effective and Caring Service33 * X---R SAuFOR
MARK PESTRELLA, Director
November 4, 2025
40 November 4, 2025
Dear Supervisors:
SUBJECT
IT IS RECOMMENDED THAT THE BOARD:
1 IN REPLY PLEASE
REFER TO FILE:
Public Works is seeking Board approval of proposed ordinances to amend the Los Angeles County Code and adopt the California Building Standards Codes, with amendments, as required by State law, for the enforcement of: Title 26 - Building Code; Title 27 - Electrical Code; Title 28 - Plumbing Code; Title 29 - Mechanical Code; Title 30 - Residential Code; Title 31 - Green Building Standards Code; and Title 33 - Existing Building Code.
2. Introduce, waive reading, and place the ordinances amending the Los Angeles County Codes on the November 25, 2025, public hearing agenda to adopt by reference the 2025 California Building, Electrical, Plumbing, Mechanical, Residential, Green Building Standards, and Existing Building Codes.
1. Find that the proposed ordinances are exempt from the provisions of the California Environmental Quality Act for the reasons stated in this letter Board letter and in the record of the project.
The Honorable Board of Supervisors
County of Los Angeles
383 Kenneth Hahn Hall of Administration
500 West Temple Street
Los Angeles, California 90012
1 /U
!
+ ( +
ADOPTED
BOARD OF SUPERVISORS
COUNTY OF LOS ANGELES
900 SOUTH FREMONT AVENUE
ALHAMBRA, CALIFORNIA 91803-1331
Telephone: (626) 458-5100
http://dpw.lacounty.gov
EDWARD YEN
EXECUTIVE OFFICER
SET: November 25, 2025 at 9:30 a.m.
MUNICIPAL SERVICES CORE SERVICE AREA
PROPOSED ORDINANCES - 2026 LOS ANGELES COUNTY
BUILDING, ELECTRICAL, PLUMBING, MECHANICAL, RESIDENTIAL,
GREEN BUILDING STANDARDS, AND EXISTING BUILDING CODES
(ALL SUPERVISORIAL DISTRICTS)
(3-VOTES)
ADDRESS ALL CORRESPONDENCE TO:
P.O. BOX 1460
ALHAMBRA, CALIFORNIA 91802-1460
AFTER THE PUBLIC HEARING, IT IS RECOMMENDED THAT THE BOARD:
4. Approve the ordinances and establish their effective date as January 1,2026.
PURPOSE/JUSTIFICATION OF RECOMMENDED ACTION
Implementation of Strategic Plan Goals
These recommendations support the County Strategic Plan: North Star 2, Foster Vibrant and Resilient Communities, Focus Area Goal D, Sustainability, by providing services to the public that have a wide-reaching positive effect on the entire community.
The adoption of the County's building codes provides minimum construction and property maintenance standards that promote carbon-neutrality and climate resilience in structures, as well as the health and welfare of the general public throughout the The purpose of the recommended actions is to find that the proposed ordinances are exempt from the provisions of the California Environmental Quality Act (CEQA) and to adopt the enclosed ordinances, as required by State law, to add, update, and set forth provisions and regulations for the enforcement of the Building, Electrical, Plumbing, Mechanical, Residential, Green Building Standards, and Existing Building Codes within the unincorporated areas of the County of Los Angeles and the contract cities served by the County that elect to adopt the same ordinances by reference.
3. Find that the proposed changes and modifications to building standards contained in the Los Angeles County Codes by reference to the 2025 California Building, Electrical, Plumbing, Mechanical, Residential, Green Building Standards, and Existing Building Codes are reasonably necessary due to local climatic, geological, and/or topographical conditions, as detailed in the seven respective ordinances; find that the proposed changes and modifications are substantially equivalent to changes and modifications that were previously filed with the California Building Standards Commission, which were in effect as of September 30, 2025, or that the changes and modifications relate to home hardening, as detailed in the ordinances, in compliance with the California Health and Safety Code; and find that adoption of the emergency housing appendices in Titles 26 and 30 are necessary because strict compliance with State and local standards and laws would prevent, hinder, or delay the mitigation of the effects of a declared shelter crisis or other emergency.
The Honorable Board of Supervisors
November 4, 2025
5. Instruct the Director of Public Works or his designee to file the adopted ordinances containing the Board of Supervisors' findings with the California Building Standards Commission, along with other State agencies as required by law.
FISCAL IMPACT/FINANCING
FACTS AND PROVISIONS/LEGAL REQUIREMENTS
Section 8698.4 of the California Government Code permits local jurisdictions, upon declaration of a shelter crisis, to suspend health and safety standards for homeless shelters, provided those local jurisdictions have adopted reasonable local standards that at a minimum meet the standards provided in the emergency housing appendices of Title 30 - Residential Code (Appendix CJ) and Title 26 - Building Code (Appendix Q).
In addition, at the time of the ordinance adoption, the local jurisdiction must determine The State recently adopted the 2025 Edition of the California Building Standards Code, which includes the 2025 California Building, Electrical, Plumbing, Mechanical, Residential, Green Building Standards, and Existing Building Codes.
There will be minimal impact on expenditures for Public Works to train appropriate personnel. All associated costs, including training costs and the procurement of the new code books, are included in the Public Works General Fund (A01, Services and Supplies) Fiscal Year 2025-26 Budget.
The enclosed ordinances incorporate, by reference, the building standards contained in the 2025 California Building, Electrical, Plumbing, Mechanical, Residential, Green Building Standards, and Existing Building Codes, together with critical and necessary County amendments. In accordance with Sections 17958.5 and 17958.7 of the California Health and Safety Code, the Board must determine and expressly find that these proposed amendments are needed due to local climatic, geological, and/or topographical conditions.
The California Health and Safety Code requires that the County adopt ordinances that impose the same building standards as contained in the 2025 California Building Standards Code, with the exception that the County may make amendments to these building standards that are more restrictive and are reasonably necessary due to local climatic, geological, and/or topographical conditions. The proposed changes in the ordinances are consistent with Assembly Bill 130, enacted on June 30, 2025, which prohibits most local modifications to the California Building Standards Codes for residential units. The proposed modifications to the California Building Standards Codes in these ordinances are consistent with Assembly Bill 130 because the proposed changes are substantially equivalent to the County's Building Codes that were in effect on September 30, 2025, or relate to home hardening.
unincorporated areas of the County. By incorporating the most up-to-date building and safety standards, the County will be able to ensure that its Strategic Goals are fully addressed.
The Honorable Board of Supervisors
November 4, 2025
A sample notice is submitted herewith.
California Health and Safety Code Sections 17958 and 18941.5 require that all amendments, together with the unamended portions of the California Building, Electrical, Plumbing, Mechanical, Residential, Green Building Standards, and Existing Building Codes, become effective 180 days after the publication of the California Building Standards Code. The State has established the effective date to be January 1, 2026.
Accordingly, it is recommended that the Board establish the operative date of the amendments, together with the unamended portions of the California Building Standards Code, to be January 1, 2026. The proposed amendments will then become operative when the Board's findings are filed with the California Building Standards Commission.
In accordance with the requirements of California Government Code Section 50022.3, the Board must schedule a public hearing after the first reading of the title of the adopting ordinances. Notice of the hearing is required to be published pursuant to California Government Code Section 6066. A copy of the California Building, Electrical, Plumbing, Mechanical, Residential, Green Building Standards, and Existing Building Codes are on file with the Executive Office of the Board and are available for public inspection and also available at the following website link: https://www.dqs.ca.qov/BSC/Codes. that strict compliance with existing State and local standards or laws would in any way prevent, hinder, or delay the mitigation of the effects of the shelter crisis.
The applicable finding(s) for each proposed amendment to the California Building Standards Code are clearly delineated in a chart, which is set forth in each of the proposed ordinances. The ordinances also contain various administrative changes that do not require special local findings. The last County update to the California Building Standards Code was approved by the Board on November 15, 2022.
In its continued efforts to provide consistency within the Los Angeles Basin and to provide the public with locally applicable and efficient codes, Public Works has, again, joined efforts with a majority of the cities within the County to undergo thorough examination of previous and proposed amendments to the building standards published by the State. Many of the proposed local amendments to the California Building Standards Code are based on the model language generated by the International Code Council Los Angeles Basin Chapter which has the support of many local jurisdictions. These local jurisdiction amendments are structured to be consistent with the 2025 Edition of the California Building Standards Code provisions. The goal of these multijurisdictional groups is to minimize differences in code language and interpretation within the region, thereby assisting the local construction industry by unifying and streamlining the permitting process.
The Honorable Board of Supervisors
November 4, 2025
ENVIRONMENTAL DOCUMENTATION
IMPACT ON CURRENT SERVICES (OR PROJECTS)
CONCLUSION
MP:JM:el
Enclosures
Respectfully submitted,
/Pvtule
MARK PESTRELLA, PE
Director of Public Works
Other departments embarking on construction projects will be required to comply with the provisions of these ordinances if applications for permits to begin construction are submitted on or after the operative date of these ordinances.
Upon approval of the enclosed ordinances, please return one adopted copy of this Board letter and one adopted copy of the ordinances to Public Works, Building and Safety Division.
Adoption of these ordinances is exempt from CEQA in that it can be seen with certainty that there is no possibility that the ordinances may have a significant effect on the environment pursuant to CEQA Guidelines Section 15061(b)(3). Adoption of the proposed ordinances is covered by the general rule that CEQA applies only to projects that have the potential to cause a significant effect on the environment. Adoption of the proposed ordinances does not have such potential.
Copies of the proposed code changes were circulated to professional associations within the design and construction communities for review and comments. No comments were received by Public Works, and changes to the proposed code changes were not necessary.
The Honorable Board of Supervisors
November 4, 2025
c: Chief Executive Office (Christine Frias)
County Counsel
Executive Office, Board of Supervisors
Fire
Regional Planning
Enclosure A
ANALYSIS
MFA/CBS:bc
HOA.105556295.10
Requested:
Revised:
08/20/25
10/22/25
MARGARET F. AMBROSE
Principal Deputy County Counsel
DAWYN R. HARRISON
County Counsel
This ordinance repeals those provisions of Title 26 - Building Code - of the Los Angeles County Code that incorporated by reference portions of the 2022 Edition of the California Building Code, and the ordinance replaces them with provisions incorporating by reference portions of the 2025 California Building Code, as published by the California Building Standards Commission, with certain changes and modifications.
State law requires that the County's Building Code contain the same requirements as are contained in the building standards published in the most recent edition of the California Building Code. State law allows the County to change or modify these requirements in compliance with section 17958 of the California Health and Safety Code, based upon express findings, contained in the ordinance, that such changes are reasonably necessary due to local climatic, geological, or topographical conditions. These changes and modifications are substantially equivalent to changes or modifications previously filed with the California Building Standards Commission by the County of Los Angeles, which were in effect as of September 30, 2025, or that relate to home hardening, in compliance with recent changes to section 17958 of the California Health and Safety Code.
This ordinance also makes certain modifications to the administrative provisions of Title 26.
Enclosure A
ORDINANCE NO.
An ordinance amending Title 26 - Building Code - of the Los Angeles County Code, to adopt and incorporate by reference the 2025 California Building Code, with certain changes and modifications, and to make other revisions thereto.
The Board of Supervisors of the County of Los Angeles ordains as follows:
SECTION 1. Sections 119.1.2 through 119.1.14 of Chapter 1, Chapters 2 through 35, and Appendices C, H, I, J, and P, of the Los Angeles County Code, which incorporate by reference and modify portions of the 2022 California Building Code, are hereby repealed notwithstanding the Governor of the State of California's Executive Order N-29-25.
SECTION 2. Section 100 is hereby amended to read as follows:
100 ADOPTION AND INCORPORATION BY REFERENCE
Except as hereinafter changed or modified, Sections 1.2 through 1.14 of Chapter 1 of Division I of that certain building code known and designated as the 20222025 California Building Code, as published by the California Building Standards Commission, are adopted and incorporated by reference into this Title 26 of the Los Angeles County Code as if fully set forth below, and shall be known as Sections 119.1.2 through 119.1.14, respectively, of Chapter 1 of Title 26 of the Los Angeles County Code.
Except as hereinafter changed or modified, Chapters 2 through 35, and Appendices C, H, I, J,and-P, and Q, of that certain building code known and designated as the 20222025 California Building Code, as published by the California Building HOA.105556295.10
Enclosure A
Standards Commission, are adopted and incorporated by reference into this Title 26 of the Los Angeles County Code as if fully set forth below, and shall be known as Chapters 2 through 35, and Appendices C, H, I, J,and-P, and Q, of Title 26 of the Los Angeles County Code.
Projects to repair, restore, demolish, or replace residential structures or facilities substantially damaged or destroyed as a result of the 2025 Eaton and Palisades wildfires may comply with the 2022 Building Standards Code, as adopted by Los Angeles County, provided that the plans and specifications for the project comply with the 2025 fire and public safety reguirements and minimum elevation reguirements for the National Flood Insurance Program, consistent with the Governor's Executive Order N-29-25, or subseguent applicable legal authorities.
A copy of said California Building Code, hereinafter referred to as the CBC, including the above-designated appendices, shall be at all times maintained by the Building Official for use and examination by the public.
SECTION 3. Section 103 is hereby amended to read as follows:
SECTION 103 VIOLATIONS AND PENALTIES
103.1 Compliance with Code.
It shall be unlawful for a person to erect, construct, enlarge, alter, extend, repair, move, improve, remove, connect, convert, demolish, eguip, or perform any other work on any building or structure or portion thereof, or perform any grading within a property subject to this Code as defined in Section 101.3, or cause the same to be done, HOA.105556295.10 2
Enclosure A
contrary to, or in violation of, any of the provisions of this Code.
SECTION 4. Section 104 is hereby amended to read as follows:
SECTION 104 ORGANIZATION AND ENFORCEMENT
104.2.1 General.
The Building Official is hereby authorized and directed to enforce all the provisions of this Code, including the Electrical Code, the Plumbing Code, the Mechanical Code, the Residential Code, the Existing Building Code, and the Green Building Standards Code, and any other codes as indicated in this Code, and to make all inspections pursuant to the provisions of each such Code. For such purposes, the Building Official shall have the powers of a law enforcement officer. 104.2.8 Alternate Materials, Designs and Methods of
Construction.
104.2.8.1 Reports.
Supporting data, where necessary to assist in the approval of any material, appliance, installation, device, arrangement, design, or method of construction not specifically provided for in this Code, shall comply with Sections 104.2.8.1.1 and 104.2.8.1.2.
HOA.105556295.10 3
Enclosure A
104.2.8.1.1 Evaluation reports.
Evaluation reports shall be issued by an approved agency as defined in Chapter 2, and use of the evaluation report shall require approval by the Building Official for the installation. The alternate material, appliance, installation, device, arrangement, design or method of construction shall be within the scope of the Building Official's recognition of the approved agency's expertise. Criteria used for the evaluation shall be identified within the report and, where reguired, provided to the Building Official104.2.8.1.2 Other reports.
Reports not complying with Section 104.2.8.1 shall describe criteria, including, but not limited to, any referenced testing or analysis, used to determine compliance with code intent and justify code equivalence. The report shall be prepared by a qualified engineer, specialist, laboratory or specialty organization acceptable to the Building Official. The Building Official is authorized to reguire design submittals to be prepared by, and bear the stamp of, a registered design professional.
104.2.8.2 Peer review.
In addition to the evaluation report, the Building Official is authorized to reguire submittal of a peer review report in conjunction with a reguest to use an alternative material, appliance, installation, device, arrangement, design or method of construction, prepared by a gualified peer reviewer that is approved by the Building Official.
HOA.105556295.10 4
Enclosure A
SECTION 5. Section 106 is hereby amended to read as follows:
SECTION 106 PERMITS
106.3 Work Exempted.
Exemption from the permit requirements of this Code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this Code, other laws, ordinances, or regulations, or required approvals from other County Departments and State and federal agencies. Structures shall still be regulated by Chapter 5 of the California Wildland Urban Interface Code, despite exemption from permits.
106.5.7 Combined swimming pool permit.
A combined swimming pool permit, which includes all building, electrical, plumbing, heating, and excavation work, may be issued for a-newconstruction, addition, alteration, or repair work of a swimming pool, spa or hot tub^ which will include all building, electrical, plumbing, heating, and excavation work. The combined swimming pool permit shall be subject to the requirements of this Code, the Residential Code, the Existing Building Code, the Green Building Standards Code, the Electrical Code, the Plumbing Code and the Mechanical Code, except that the fee for the combined swimming pool permit shall be as provided in Section 107.1 of this Code.
HOA.105556295.10 5
Enclosure A
SECTION 6. Table 1-A is hereby amended to read as follows:
* For additional permit issuance fee, see Section 107.1. 1 The building permit fee specified in the table above shall be increased by a surcharge of 0.013 percent of the total valuation of a Group R Occupancy or by 0.028 percent of the total valuation of all other occupancies or $0.50, whichever amount is higher, pursuant to Section 2705, Chapter 8, Division 2 of the Public Resources Code of the State of California (State Strong-Motion Instrumentation Program). This surcharge shall not be included in the building permit fee for the purpose of determining the plan check fee. all construction work required to comply with the rules and regulations adopted by the Energy Resources Conservation and Development Commission of the State of CaliforniaCalifornia Energy Commission. This increase in fee shall be included in the building permit fee for the purpose of determining the plan checking fee.
HOA.105556295.10 6
$1,159.71
$14.22
$682.83
$18.77
FEE
$63.21
$94.87
$24.44
$1,867.20
$9.66
TOTAL VALUATION_________________________________
$0 to and including $700_______________________________ More than $700 to and including $25,000
plus for each additional $1,000 or fraction thereof in excess of $1,000_____________________________________________
$25,001 to and including $50,000
plus for each additional $1,000 or fraction thereof in excess of $25,000__________________________________________
$50,001 to and including $100,000
plus for each additional $1,000 or fraction thereof in excess of $50,000__________________________________________
More than $100,000
plus for each additional $1,000 or fraction thereof
TABLE 1-A
BUILDING PERMIT FEES*1 2 3
2 The permit fee specified in the table above shall be increased by 10 percent for
Enclosure A
3 The permit fee specified in the table above shall be increased by 5 percent for all construction work required to comply with Title 24, California Code of Regulations, Section 101, et seq., the State's disabled access and adaptability requirements. The increase in fee shall be included in the building permit fee for the purpose of determining the plan check fee.
107.14 Noncompliance Fee.
107.14.1.
In accordance with Health and Safety Code 17973, where noncompliance occurs in a project related to exterior elevated elements, the Building Official may assess a civil penalty of not less than $100 nor more than $500 per day until the repairs are completed, unless an extension of time is granted by the Building Official.
SECTION 7. Section 108 is hereby amended to read as follows:
SECTION 108 INSPECTIONS
108.4 Required Inspections.
108.4.8 Types IV-A, IV-B and IV-C connection protection inspection.
In buildings of Types IV-A, IV-B and IV-C construction, where connection fireresistance ratings are provided by wood cover calculated to meet the reguirements of Section 2304.10.1, the Building Official shall inspect the wood cover after the cover is installed, but before any other coverings or finishes are installed.
HOA.105556295.10 7
Enclosure A
108.4.9 Weather-exposed balcony and walking surface
waterproofing.
Where balconies or other elevated walking surfaces have weather-exposed surfaces, and the structural framing is protected by an impervious moisture barrier, all elements of the impervious moisture barrier system shall not be concealed until inspected and approved by the Building OfficialException: Where special inspections are provided in accordance with Section 1705.1.1, Item 3.
108.4.810 Final inspection.
108.9 Approval requiredWork shall not be done beyond the point indicated in each successive inspection without first obtaining the approval of the Building Official. The Building Official, upon notification, shall make the reguested inspections and shall either indicate the portion of the construction that is satisfactory and approved, or notify the permit holder or the permit holder's agent wherein the same fails to comply with this Code. Any portions that do not comply shall be corrected and such portion shall not be covered or concealed until authorized by the Building Official.
108.910 Reinspections.
HOA.105556295.10 8
Enclosure A
SECTION 8. Section 109 is hereby amended to read as follows:
SECTION 109 USE AND OCCUPANCY
109.3 Certificate issued.
The edition of this Code under which the permit was issued.7.
8. The type of construction as defined in Chapter 6.
9. The design occupant load.
10. Where an automatic sprinkler system is provided, whether the sprinkler system is required.
11. Any special stipulations and conditions of the building permit.
SECTION 9. Section 113 is hereby amended to read as follows:
SECTION 113 EARTHQUAKE FAULTS
113.5 Construction Limitations.
The Building Official may waive the requirements for an active earthquake fault investigation for additions to existing one- or two-family dwelling units when all of the following conditions are met:
1. There is no increase in the number of bedrooms or bedroom equivalent room in the dwelling unit;
2. The addition does not increase the permitted gross floor area of the structure by more than 20 percent as it existed on January 1, 2017, or 400 square feet, whichever is less;
HOA.105556295.10 9
Enclosure A
3. The Building Official has determined that the addition is not located over or upon the trace of a known active earthquake fault as shown on the aforementioned maps; and
4. The owner shall record in the office of the Department of Registrar-Recorder a statement acknowledging that the owner is aware that the records of the Building Official indicate that the property is potentially subject to a hazard from a known active earthquake fault. The owner shall also record in the office of the Department of Registrar-Recorder an agreement relieving the County and all officers and employee:
which may result from the issuance of
uch a permit. This agreement shall provide that it is binding on all successors in interest of the owner and shall continue in effect until the Building Official records in the office of the Department of Registrar-Recorder a statement that the Building Official ha:
determined that a hazard from a known active earthquake fault no longer exists. 113.5.1 Additions to One- or Two-Family Dwellings.
The Building Official may waive the requirements for an active earthquake fault investigation for additions to existing one- or two-family dwelling units when all of the following conditions are met:
1. There is no increase in the number of bedrooms or bedroom eguivalent rooms in the dwelling unit;
HOA.105556295.10 10
thereof of any liability for any damage or loss
Enclosure A
2. The addition does not increase the permitted gross floor area of the structure by more than 20 percent as it existed on January 1, 2017, or 400 square feet, whichever is less;
3. The Building Official has determined that the addition is not located over or upon the trace of a known active earthquake fault as shown on the aforementioned maps; and
4. The owner shall record in the office of the Department of RegistrarRecorder a statement acknowledging that the owner is aware that the records of the Building Official indicate that the property is potentially subject to a hazard from a known active earthquake fault. The owner shall also record in the office of the Department of Registrar-Recorder an agreement relieving the County and all officers and employees thereof of any liability for any damage or loss that may result from the issuance of such a permit. This agreement shall provide that it is binding on all successors in interest of the owner and shall continue in effect until the Building Official records in the office of the Department of Registrar-Recorder a statement that the Building Official has determined that a hazard from a known active earthquake fault no longer exists. 113.5.2 Repair of single-family dwellings, their accessory dwelling units, or accessory structures destroyed by the wildfires.
The Building Official may waive the reguirements for an active earthquake fault investigation for the repair of a single-family dwelling, its accessory dwelling units, or accessory structures that were damaged or destroyed by wildfires as expressly HOA.105556295.10 11
Enclosure A
designated by the Los Angeles County Board of Supervisors through a proclaimed local emergency motion or resolution, when all of the following conditions are met:
1. The structure is a wood-frame or steel-frame structure not exceeding two stories and a basement.
2. The structure is not part of a development of four or more dwellings.
3. The permit applicant is the owner of the property at the time of the loss, the owner's immediate heir(s), or their authorized representative.
4. The application for a permit is filed no later than ten (10) years following the date of the loss.
5. The repaired structure does not exceed the area of the previously existing, permitted structure, plus 10 percent.
6. The owner shall record in the office of the Department of RegistrarRecorder a statement acknowledging that the owner is aware that the records of the Building Official indicate that the property is potentially subject to a hazard from a known active earthquake fault. The owner shall also record in the office of the Department of Registrar-Recorder an agreement relieving the County and all officers and employees thereof of any liability for any damage or loss that may result from the issuance of such a permit. This agreement shall provide that it is binding on all successors in interest of the owner and shall continue in effect until the Building Official records in the office of the Department of Registrar-Recorder a statement that the Building Official has determined that a hazard from a known active earthguake fault no longer exists.
HOA.105556295.10 12
Enclosure A
7. In this section, repair shall be defined as the reconstruction, replacement, or renewal of any part or the whole of an existing building for the purpose of either maintenance related to the fire or to correct damage caused by the fire. 113.5.2.1. In addition to the work allowed under 113.5.2, the Building Official may permit the construction of a new accessory dwelling unit on a property where a single-family dwelling was destroyed by wildfires as part of a project permitted under 113.5.2.
113.5.2.2. The provisions of this Section may also apply to other disasters as expressly designated by the Los Angeles County Board of Supervisors through a proclaimed local emergency motion or resolution.
SECTION 10. Section 114 is hereby added to read as follows:
SECTION 114 SERVICE UTILITIES
114.1. Connection of service utilities.
A person shall not make connections from a utility, a source of energy, fuel, or power, or a water system or sewer system to any building or system that is regulated by this Code for which a permit is reguired, until approved by the Building Official. 114.2. Temporary connection.
The Building Official shall have the authority to allow the temporary connection of a building or system to a utility, a source of energy, fuel, or power, or a water or sewer system for the purpose of testing systems or for use under a temporary approval. The Building Official shall approve the duration of the temporary timeframe.
HOA.105556295.10 13
Enclosure A
114.3. Authority to disconnect service utilities.
The Building Official shall have the authority to disconnect utility services to a building, structure or system regulated by this Code in case of emergency where necessary to eliminate an immediate hazard to life or property or where such utility connection has been made without the approval required by Section 114.1 or 114.2. The Building Official shall notify the serving utility, and wherever possible the owner or the owner’s authorized agent and occupant of the building, structure or service system of the decision to disconnect prior to taking such action. If not notified prior to disconnecting, the owner or the owner's authorized agent or occupant of the building, structure or service system shall be notified in writing, as soon as practical thereafter.
Sections 115 through 118 are hereby reserved.
SECTION 11. Section 701A is hereby added to read as follows:
701A. MODIFICATIONS TO THE CALIFORNIA WILDLANDURBAN INTERFACE CODE.
Chapter 5 of the California Wildland-Urban Interface Code shall be modified as indicated in Sections 701A.1 through 701A.7 and shall apply to all buildings and structures as provided in this section.
SECTION 12. Section 701 A. 1 is hereby added to read as follows:
701A.1 California Wildland-Urban Interface Code, Section 501.1.
Modify the California Wildland-Urban Interface Code Section 501.1 to read as follows:
HOA.105556295.10 14
Enclosure A
501.1 Scope and Application.
New bBuildings and structures in a wildland-urban interface area shall be constructed in accordance with the California Building Code and this Code. Additions, alterations, or repairs made to existing buildings erected, constructed, or moved within a Fire Hazard Severity Zone or Wildland-Urban Interface area shall be constructed in accordance with the Building Code and this Code. New buildings for which an application for a building permit is submitted on or after July 1,2008, and any additions, alterations, or repairs made to existing buildings for which an application for a building permit is submitted on or after January 1,2026, located in any Fire Hazard Severity Zone or Wildland-Urban Interface area shall comply with all sections of the Building Code and this Code.
Exceptions:
Group U accessory structures not exceeding 120 sguare feet (11 m2 1. ) in floor area where located not less than 50 feet (15 240 mm) from applicable buildings.
2. Group U agricultural buildings not less than 50 feet (15 240 mm) from applicable buildings.
501.1.1 Alternates for materials, design, tests, and methods of construction.
The Building Official is permitted to modify the provisions of this Chapter for sitespecific conditions in accordance with Chapter 1, Section 104.2.2.
HOA.105556295.10 15
Enclosure A
SECTION 13. Section 701 A.2 is hereby added to read as follows:
701 A.2 California Wildland-Urban Interface Code, Section 503.1 Modify the California Wildland-Urban Interface Code Section 503.1 to read as follows:
503.1 General.
Buildings and structures hereafter constructed, modified or relocated into or within wildland-urban interface areas shall meet the construction requirements in accordance with Chapter 5. Materials required to be ignition-resistant building materials shall comply with the requirements of Section 503.2.
Exceptions:
1. New accessory buildings and miscellaneous structures complying with Section 504.11.
2. Additions to and remodels of buildings originally constructed prior to July 1,2008.Reserved.
3. Group C occupancy special buildings conforming to the limitations specified in Section 450.4.1 of the California Building Code.
SECTION 14. Section 701 A.3 is hereby added to read as follows:
701A.3 California Wildland-Urban Interface Code,
Section 503.2.3.
Modify the California Wildland-Urban Interface Code Section 503.2.3 to read as follows:
HOA.105556295.10 16
Enclosure A
Fire-retardant-treated wood roof coverings.503.2.3
Roof assemblies containing fire-retardant-treated wood shingles and shake; hall comply with the requirements of Section 1505.6 of the California Building Code and shall be classified as Class A roof assemblies as required in Section 1505.2 of the California Building Code.Reserved.
SECTION 15. Section 701 A.4 is hereby added to read as follows:
701 A.4 California Wildland-Urban Interface Code,
Section 503.3.1.
Modify the California Wildland-Urban Interface Code Section 503.3.1 to read as follows:
503.3.1 Qualification by testing.
Material and material assemblies tested in accordance with the requirements of Section 503 shall be accepted for use when the results and conditions of those tests are met. Product evaluation testing of material and material assemblies shall be approved or listed by the State Fire Marshal, the Building Official, or identified in a current report issued by an approved agency.
SECTION 16. Section 701 A.5 is hereby added to read as follows:
701A.5 California Wildland-Urban Interface Code,
Section 503.3.4.
Modify the California Wildland-Urban Interface Code Section 503.3.4 to read as follows:
HOA.105556295.10 17
Enclosure A
503.3.4 Fire-retardant-treated wood shingles and
shakes.Reserved.
Fire-retardant-treated wood shingles and shake' hall be approved and listed by the State Fire Marshal in accordance with Section 208(c), Title 19 California Code of Regulations.
SECTION 17. Section 701 A.6 is hereby added to read as follows:
California Wildland-Urban Interface Code,701A.6
Section 504.2.1.
Modify the California Wildland-Urban Interface Code Section 504.2.1 to read as follows:
504.2.1 Roof covering voids.
Where there is a void under the roof covering it shall comply with Section 504.2.1.1 or 504.2.1.2. Roof coverings shall be Class A as specified in the Building Code. Wood shingles and wood shakes are prohibited in any Fire Hazard Severity Zone regardless of classification.
SECTION 18. Section 701 A.7 is hereby added to read as follows:
701A.7 California Wildland-Urban Interface Code,
Section 504.5.2.
Modify the California Wildland-Urban Interface Code Section 504.5.2 to read as follows:
HOA.105556295.10 18
Enclosure A
504.5.2 Exterior wall coverings.
Exterior wall coverings shall comply with one or more of the following requirements:
1. Noncombustible material.
2. Ignition-resistant building material labeled for exterior use.
3. Fire-retardant treated wood labeled for exterior use and complying with the requirements of Section 2303.2 of the California Building Code.
4. Fire-retardant-treated wood shingles and shakes which have been qualified in accordance with Section 1505.6 of the California Building Code for use as "Class B" roof covering shall be an acceptable alternative wall covering material where installed over solid sheathing.Reserved.
Exception:
Exterior wall coverings which are a component of an approved wall assembly complying with Section 504.5.
SECTION 19. Section 1031.2.1 is hereby amended to read as follows:
1031.2.1 Operational constraints and opening control devices.
Where security bars (burglar bars) are installed on emergency egress and rescue windows or doors, on or after July 1,2000, such devices shall comply with California Building Standards Code, Part 12, Chapter 12-3 and other applicable provisions of Part 2.
HOA.105556295.10 19
Enclosure A
SECTION 20. Table 1507.3.7 is hereby amended to read as follows:
GENERAL - CLAY OR CONCRETE ROOF TILE
Roof slope <3:12 Roof slope 3:12 and over
0-60
100 0-40
INTERLOCKING CLAY OR CONCRETE ROOF TILE WITH PROJECTING ANCHOR LUGS d e (Installations on spaced/solid sheathing with battens or spaced sheathing) Roof slope <5:12
85 0-60
than 9
100 0-40
INTERLOCKING CLAY OR CONCRETE ROOF TILE WITH PROJECTING ANCHOR LUGS (Installations on solid sheathing without battens)
All-Minimum roof slopes 4 units vertical in 12 units horizontal Maximum slope 7 units vertical in 12 units horizontal
= 304.8 mm, 1 mile per hour = 0.447 m/s, 1 pound per
HOA.105556295.10 20
Mean roof
height (feet)
Mean roof
height (feet)
Mean roof
height (feet)
Minimum slope: 2.5:12
Ono fastonor por tile. Flat
tile without vertical laps,
Ttwo fasteners per tile.
Roof slope
5:12<12:12
Roof slope
12:12 and
over
For SI: 1 inch = 25.4 mm, 1 fool
square foot = 4.882 kg/m2.
aMinimum fastener size. Hot dipped galvanized ring shank or other Ccorrosion-resistant nails not less than No. 11 gage with 5/16-inch head. Fasteners shall be long enough to penetrate into the sheathing 3 inch or through the thickness of the sheathing, Two fasteners per tile. Only one
fastener on slopes of 7:12 and lei
for tiles with installed weight
exceeding 7.5 lbs/sq. ft. having a
width no greater than 16 inches.
lbs/sq. ft. require not fewer
thanMinimum slope is
4:12. Oene fastener per
tile.
One fastener
required for
every tile.
Tiles with
installed weight
less than 9
ibs./sq. ft.
require not
fewer than one
fastener per
tile.
Maximum
Allowable Stress
Design Wind
Speed, Vasa’
_____(mph)____
85 Maximum
Allowable Stress
Design Wind
Speed, Vasdf
(mph)
Maximum
Allowable Stress
Design Wind
Speed, Vasdf
(mph)
Fasteners are not
required. Tiles with
installed weight less
TABLE 1507.3.7
CLAY AND CONCRETE TILE ATTACHMENT a, b,c
One fastener per
tile every other
row. Perimeter
-AnA TT0
fastener. Tiles
with installed
weight less than 9
Ibs/sq.ft. require
not fewer than
one fastener per
tile.
Enclosure A
SECTION 21. Section 1613.8 is hereby added to read as follows:
1613.8 Modifications to ASCE 7.
The text of ASCE 7 shall be modified as indicated in Sections 1613.8.1 through 1613.8.3.
1613.8.1 ASCE 7, 12.2.3.1, Exception 3.
Modify ASCE 7, Section 12.2.3.1, Exception 3, to read as follows:
3. Detached one- and two-family dwellings up to two stories in height of light frame construction.
1613.8.2 ASCE 7, Section 12.11.2.2.3.
Modify ASCE 7, Section 12.11.2.2.3, to read as follows:
12.11.2.2.3 Wood diaphragms.
The anchorage of concrete or masonry structural walls to wood diaphragms shall be in accordance with AWC SDPWS 4.1.5.1 and this sSection. Continuous ties required by this sSection shall be in addition to the diaphragm sheathing. Anchorage shall not be accomplished by use of toenails or nails subject to withdrawal, nor shall wood ledgers or framing be used in cross-grain bending or cross-grain tension. The diaphragm sheathing shall not be considered effective as providing ties or struts required by this Section.
For structures assigned to Seismic Design Category D, E, or F, wood diaphragms supporting concrete or masonry walls shall comply with the following:
HOA.105556295.10 21
whichever is less. Attaching wire for clay and concrete tile shall not be smaller than
0.083 inch and shall be copper, brass, or stainless steel.
Enclosure A
1. The spacing of continuous ties shall not exceed 40 feet Added chords of diaphragms may be used to form subdiaphragms to transmit the anchorage forces to the main continuous crossties.
2. The maximum diaphragm shear used to determine the depth of the subdiaphragm shall not exceed 75 percent of the maximum diaphragm shear1613.8.3 ASCE 7, 12.12.3.
Modify ASCE 7, Section 12.12.2, to read as follows:
All portions of the structure shall be designed and constructed to act as an integral unit in resisting seismic forces unless separated structurally by a distance sufficient to avoid damaging contact as set forth in this section.
Separations shall allow for the Maximum Design Earthquake Displacements, 5MDE, as determined in accordance with 12.12-1:
8MDE = Cd 8e + 8di
(Equation 12.12-1)
SECTION 22. Section 1613.9 is hereby added to read as follows:
1613.9 Seismic design provisions for hillside buildings. 1613.9.1 Purpose.
The purpose of this Section is to establish minimum regulations for the design and construction of new buildings and additions to existing buildings when constructing such buildings on or into slopes steeper than one unit vertical in three units horizontal (33.3 percent). These regulations establish minimum standards for seismic force resistance to reduce the risk of injury or loss of life in the event of earthquakes.
HOA.105556295.10 22
Enclosure A
1613.9.2 Scope.
The provisions of this Section shall apply to the design of the lateral-forceresisting system for hillside buildings at and below the base level diaphragm. The design of the lateral-force-resisting system above the base level diaphragm shall be in accordance with the provisions for seismic and wind design as required elsewhere in this Chapter.
Exceptions:
1. Non-habitable accessory buildings and decks not supporting or supported from the main building are exempt from these regulations.
2. Additions to existing buildings that do not exceed 10 percent of the existing floor area provided that the addition is being supported completely by the existing foundation.
1613.9.3 Definitions.
For the purposes of this Section certain terms are defined as follows:
BASE LEVEL DIAPHRAGM is the floor at, or closest to, the top of the highest level of the foundation.
DIAPHRAGM ANCHORS are assemblies that connect a diaphragm to the adjacent foundation at the uphill diaphragm edge.
DOWNHILL DIRECTION is the descending direction of the slope approximately perpendicular to the slope contours.
FOUNDATION is concrete or masonry that supports a building, including footings, stem walls, retaining walls, and grade beams.
HOA.105556295.10 23
Enclosure A
FOUNDATION EXTENDING IN THE DOWNHILL DIRECTION is a foundation running downhill and approximately perpendicular to the uphill foundation.
HILLSIDE BUILDING is any building or portion thereof constructed on or into a slope steeper than one unit vertical in three units horizontal (33.3 percent). If only a portion of the building is supported on or into the slope, these regulations apply to the entire building.
PRIMARY ANCHORS are diaphragm anchors designed for and providing a direct connection as described in Sections 1613.9.5 and 1613.9.7.3 between the diaphragm and the uphill foundation.
SECONDARY ANCHORS are diaphragm anchors designed for and providing a redundant diaphragm to foundation connection, as described in Sections 1613.9.6 and 1613.9.7.4.
UPHILL DIAPHRAGM EDGE is the edge of the diaphragm adjacent and closest to the highest ground level at the perimeter of the diaphragm.
UPHILL FOUNDATION is the foundation parallel and closest to the uphill diaphragm edge.
1613.9.4 Analysis and design.
1613.9.4.1 General.
Every hillside building within the scope of this Section shall be analyzed, designed, and constructed in accordance with the provisions of this Chapter. When the code-prescribed wind design produces greater effects, the wind design shall govern, but detailing requirements and limitations prescribed in this Section and all referenced HOA.105556295.10 24
Enclosure A
Sections shall be followed.
1613.9.4.2 Base level diaphragm-downhill direction.
The following provisions shall apply to the seismic analysis and design of the connections for the base level diaphragm in the downhill direction. 1613.9.4.2.1 Base for lateral force design defined.
For seismic forces acting in the downhill direction, the base of the building shall be the floor at, or closest to, the top of the highest level of the foundation. 1613.9.4.2.2 Base shear.
In developing the base shear for seismic design, the response modification coefficient (R) shall not exceed 5 for bearing wall and building frame systems. The total base shear shall include the forces tributary to the base level diaphragm, including forces from the base level diaphragm.
1613.9.5 Base shear resistance for primary anchors.
1613.9.5.1 General.
The base shear in the downhill direction shall be resisted through primary anchors from diaphragm struts provided in the base level diaphragm to the foundation. 1613.9.5.2 Location of primary anchors.
A primary anchor and diaphragm strut shall be provided in line with each foundation extending in the downhill direction. Primary anchors and diaphragm struts shall also be provided where interior vertical lateral-force-resisting elements occur above and in contact with the base level diaphragm. The spacing of primary anchors and diaphragm struts or collectors shall in no case exceed 30 feet (9,144 mm).
HOA.105556295.10 25
Enclosure A
1613.9.5.3 Design of primary anchors and diaphragm struts.
Primary anchors and diaphragm struts shall be designed in accordance with the requirements of Section 1613.9.8.
1613.9.5.4 Limitations.
The following lateral-force-resisting elements shall not be designed to resist seismic forces below the base level diaphragm in the downhill direction:
1. Wood structural panel wall sheathing;
Cement plaster and lath;2.
3. Gypsum wallboard; and
4. Tension-only braced frames.
Braced frames designed in accordance with the requirements of Section 2205.2.2 may be used to transfer forces from the primary anchors and diaphragm struts to the foundation provided lateral forces do not induce flexural stresses in any member of the frame or in the diaphragm struts. Deflections of frames shall account for the variation in slope of diagonal members when the frame is not rectangular.
1613.9.6 Base shear resistance for secondary anchors.
1613.9.6.1 General.
In addition to the primary anchors required by Section 1613.9.5, the base shear in the downhill direction shall be resisted through secondary anchors in the uphill foundation connected to diaphragm struts in the base level diaphragm.
HOA.105556295.10 26
Enclosure A
Exception: Secondary anchors are not required where foundations extending in the downhill direction spaced at not more than 30 feet (9,144 mm) on center extend up to and are directly connected to the base level diaphragm for at least 70 percent of the diaphragm depth.
1613.9.6.2 Secondary anchor capacity and spacing.
Secondary anchors at the base level diaphragm shall be designed for a minimum force equal to the base shear, including forces tributary to the base level diaphragm, but not less than 600 pounds per lineal foot (8.76 kN/m). The secondary anchors shall be uniformly distributed along the uphill diaphragm edge and shall be spaced at a maximum of four feet (1,219 mm) on center.
1613.9.6.3 Design.
Secondary anchors and diaphragm struts shall be designed in accordance with Section 1613.9.8.
1613.9.7 Diaphragms below the base level for downhill direction.
The following provisions shall apply to the lateral analysis and design of the connections for all diaphragms below the base level diaphragm in the downhill direction. 1613.9.7.1 Diaphragm defined.
Every floor level below the base level diaphragm shall be designed as a diaphragm.
HOA.105556295.10 27
Enclosure A
1613.9.7.2 Design force.
Each diaphragm below the base level diaphragm shall be designed for all tributary loads at that level using a minimum seismic force factor not less than the base shear coefficient.
1613.9.7.3 Design force-resistance for primary anchors.
The design force described in Section 1613.9.7.2 shall be resisted through primary anchors from diaphragm struts provided in each diaphragm to the foundation.
Primary anchors shall be provided and designed in accordance with the requirements and limitations of Section 1613.5.5.
1613.9.7.4 Design force-resistance for secondary anchors. 1613.9.7.4.1 General.
In addition to the primary anchors required in Section 1613.9.7.3, the design force in the downhill direction shall be resisted through secondary anchors in the uphill foundation connected to diaphragm struts in each diaphragm below the base level.
Exception: Secondary anchors are not required where foundations extending in the downhill direction, spaced at not more than 30 feet (9,144 mm) on center,, extend up to and are directly connected to each diaphragm below the base level for at least 70 percent of the diaphragm depth.
HOA.105556295.10 28
Enclosure A
1613.9.7.4.2 Secondary anchor capacity.
Secondary anchors at each diaphragm below the base level diaphragm shall be designed for a minimum force equal to the design force but not less than 300 pounds per lineal foot (4.38 kN/m). The secondary anchors shall be uniformly distributed along the uphill diaphragm edge and shall be spaced at a maximum of four feet (1,219 mm) on center.
1613.9.7.4.3 Design.
Secondary anchors and diaphragm struts shall be designed in accordance with Section 1613.9.8.
1613.9.8 Primary and secondary anchorage and diaphragm strut design.
Primary and secondary anchors and diaphragm struts shall be designed in accordance with the following provisions:
1. Fasteners. All bolted fasteners used to develop connections to wood members shall be provided with square plate washers at all bolt heads and nuts.
Washers shall be minimum 0.229 inch by 3 inches by 3 inches (5.82 mm by 76 mm by 76 mm) in size. Nuts shall be tightened to finger tight plus one-half (1/2) wrench turn prior to covering the framing.
2. Fastening. The diaphragm to foundation anchorage shall not be accomplished by the use of toenailing, nails subject to withdrawal, or wood in crossgrain bending or cross-grain tension.
HOA.105556295.10 29
Enclosure A
3. Size of Wood Members. Wood diaphragm struts, collectors, and other wood members connected to primary anchors shall not be less than three-inch (76 mm) nominal width. The effects of eccentricity on wood members shall be evaluated as required per Item 9.
4. Design. Primary and secondary anchorage, including diaphragm struts, splices, and collectors shall be designed for 125 percent of the tributary force.
5. Allowable Stress Increase. The one-third allowable stress increase permitted under Section 1605.2 shall not be taken when the working (allowable) stress design method is used.
6. Steel Element of Structural Wall Anchorage System. The strength design forces for steel elements of the structural wall anchorage system, with the exception of anchor bolts and reinforcing steel, shall be increased by 1.4 times the forces otherwise required.
7. Primary Anchors. The load path for primary anchors and diaphragm struts shall be fully developed into the diaphragm and into the foundation. The foundation must be shown to be adequate to resist the concentrated loads from the primary anchors.
8. Secondary Anchors. The load path for secondary anchors and diaphragm struts shall be fully developed in the diaphragm but need not be developed beyond the connection to the foundation.
HOA.105556295.10 30
Enclosure A
9. Symmetry. All lateral force foundation anchorage and diaphragm strut connections shall be symmetrical. Eccentric connections may be permitted when demonstrated by calculation or tests that all components of force have been provided for in the structural analysis or tests.
10. Wood Ledgers. Wood ledgers shall not be used to resist cross-grain bending or cross-grain tension.
1613.9.9 Lateral-force-resistinq elements normal to the downhill direction.
1613.9.9.1 General.
In the direction normal to the downhill direction, lateral-force-resisting elements shall be designed in accordance with the requirements of this Section. 1613.9.9.2 Base shear.
In developing the base shear for seismic design, the response modification coefficient (R) shall not exceed 5 for bearing wall and building frame systems. 1613.9.9.3 Vertical distribution of seismic forces.
For seismic forces acting normal to the downhill direction the distribution of seismic forces over the height of the building using Section 12.8.3 of ASCE 7 shall be determined using the height measured from the top of the lowest level of the building foundation.
HOA.105556295.10 31
Enclosure A
1613.9.9.4 Drift limitations.
The story drift below the base level diaphragm shall not exceed 0.007 times the story height at strength design force level. The total drift from the base level diaphragm to the top of the foundation shall not exceed 3/4 inch (19 mm). Where the story height or the height from the base level diaphragm to the top of the foundation varies because of a stepped footing or story offset, the height shall be measured from the average height of the top of the foundation. The story drift shall not be reduced by the effect of horizontal diaphragm stiffness.
1613.9.9.5 Distribution of lateral forces.
1613.9.9.5.1 General.
The design lateral force shall be distributed to lateral-force-resisting elements of varying heights in accordance with the stiffness of each individual element. 1613.9.9.5.2 Wood structural panel sheathed walls.
The stiffness of a stepped wood structural panel shear wall may be determined by dividing the wall into adjacent rectangular elements, subject to the same top of wall deflection. Deflections of shear walls may be estimated by AWC SDPWS Section 4.3.2.
Sheathing and fastening requirements for the stiffest section shall be used for the entire wall. Each section of wall shall be anchored for shear and uplift at each step. The minimum horizontal length of a step shall be 8 feet (2438 mm) and the maximum vertical height of a step shall be 2 feet, 8 inches (813 mm).
HOA.105556295.10 32
Enclosure A
1613.9.9.5.3 Reinforced concrete or masonry shear walls.
Reinforced concrete or masonry shear walls shall have forces distributed in proportion to the rigidity of each section of the wall. 1613.9.9.6 Limitations.
The following lateral force-resisting-elements shall not be designed to resist lateral forces below the base level diaphragm in the direction normal to the downhill direction:
1. Cement plaster and lath;
2. Gypsum wallboard; and
3. Tension-only braced frames.
Braced frames designed in accordance with the requirements of Section 2202.2.1.2 of this Code may be designed as lateral-force-resisting elements in the direction normal to the downhill direction, provided lateral forces do not induce flexural stresses in any member of the frame. Deflections of frames shall account for the variation in slope of diagonal members when the frame is not rectangular. 1613.9.10 Specific design provisions.
1613.9.10.1 Footings and grade beams.
All footings and grade beams shall comply with the following:
1. Grade beams shall extend at least 12 inches (305 mm) below the lowest adjacent grade and provide a minimum 24-inch (610 mm) distance horizontally from the bottom outside face of the grade beam to the face of the descending slope.
HOA.105556295.10 33
Enclosure A
2. Continuous footings shall be reinforced with at least two No. 4 reinforcing bars at the top and two No. 4 reinforcing bars at the bottom.
3. All main footing and grade beam reinforcement steel shall be bent into the intersecting footing and fully developed around each corner and intersection.
4. All concrete stem walls shall extend from the foundation and be reinforced as required for concrete or masonry walls.
1613.9.10.2 Protection against decay and termites.
All wood to earth separation shall comply with the following:
1. Where a footing or grade beam extends across a descending slope, the stem wall, grade beam, or footing shall extend up to a minimum 18 inches (457 mm) above the highest adjacent grade.
Exception: At paved garage and doorway entrances to the building, the stem wall need only extend to the finished concrete slab, provided the wood framing is protected with a moisture proof barrier.
2. Wood ledgers supporting a vertical load of more than 100 pounds per lineal foot (1.46 kN/m) based on Allowable Stress Design (ASD) levels and located within 48 inches (1219 mm) of adjacent grade are prohibited. Galvanized steel ledgers and anchor bolts, with or without wood nailers, or treated or decay resistant sill plates supported on a concrete or masonry seat, may be used.
1613.9.10.3 Sill plates.
All sill plates and anchorage shall comply with the following:
HOA.105556295.10 34
Enclosure A
1. All wood framed walls, including nonbearing walls, when resting on a footing, foundation, or grade beam stem wall, shall be supported on wood sill plates bearing on a level surface.
2. Power-driven fasteners shall not be used to anchor sill plates except at interior nonbearing walls not designed as shear walls.
1613.9.10.4 Column base plate anchorage.
The base of isolated wood posts (not framed into a stud wall) supporting a vertical load of 4,000 pounds (17.8 kN) or more based on ASD levels, and the base plate for a steel column shall comply with the following:
1. When the post or column is supported on a pedestal extending above the top of a footing or grade beam, the pedestal shall be designed and reinforced as required for concrete or masonry columns. The pedestal shall be reinforced with a minimum of four No. 4 bars extending to the bottom of the footing or grade beam. The top of exterior pedestals shall be sloped for positive drainage.
2. The base plate anchor bolts or the embedded portion of the post base, and the vertical reinforcing bars for the pedestal, shall be confined with two No. 4 or three No. 3 ties within the top 5 inches (127 mm) of the concrete or masonry pedestal.
The base plate anchor bolts shall be embedded a minimum of 20 bolt diameters into the concrete or masonry pedestal. The base plate anchor bolts and post bases shall be galvanized and each anchor bolt shall have at least two galvanized nuts above the base plate.
HOA.105556295.10 35
Enclosure A
1613.9.10.5 Steel beam to column supports.
All steel beam to column supports shall be positively braced in each direction.
Steel beams shall have stiffener plates installed on each side of the beam web at the column. The stiffener plates shall be welded to each beam flange and the beam web.
Each brace connection or structural member shall consist of at least two 5/8 inch (15.9 mm) diameter machine bolts.
SECTION 23. Section 1613.10 is hereby added to read as follows:
1613.10 Suspended ceilings.
Minimum design and installation standards for suspended ceilings shall be determined in accordance with the requirements of Section 2506.2.1 and this Section. 1613.10.1 Scope.
This part contains special requirements for suspended ceilings and lighting systems. Provisions of Section 13.5.6 of ASCE 7 shall apply except as modified herein. 1613.10.2 General.
The suspended ceilings and lighting systems shall be limited to 6 feet (1828 mm) below the structural deck unless the lateral bracing is designed by a licensed engineer or architect.
1613.10.3 Sprinkler heads.
All sprinkler heads (drops) except fire-resistance-rated floor/ceiling or roof/ceiling assemblies, shall be designed to allow for free movement of the sprinkler pipes with oversize rings, sleeves or adaptors through the ceiling tile. Sprinkler heads and other penetrations shall have a 2-inch (50mm) oversize ring, sleeve, or adapter through the HOA.105556295.10 36
Enclosure A
ceiling tile to allow for free movement of at least 1 inch (25mm) in all horizontal directions. Alternatively, a swing joint that can accommodate 1 inch (25 mm) of ceiling movement in all horizontal directions is permitted to be provided at the top of the sprinkler head extension.
Sprinkler heads penetrating fire-resistance-rated floor/ceiling or roof/ceiling assemblies shall comply with Section 714.
1613.10.4 Special requirements for means of egress.
Suspended ceiling assemblies located along means of egress serving an occupant load of 30 or more and at lobbies accessory to Group A Occupancies shall comply with the following provisions.
1613.10.4.1 General.
Ceiling suspension systems shall be connected and braced with vertical hangers attached directly to the structural deck along the means of egress serving an occupant load of 30 or more and at lobbies accessory to Group A Occupancies. Spacing of vertical hangers shall not exceed 2 feet (610 mm) on center along the entire length of the suspended ceiling assembly located along the means of egress or at the lobby. 1613.10.4.2 Assembly device.
All lay-in panels shall be secured to the suspension ceiling assembly with two hold-down clips minimum for each tile within a 4-foot (1219 mm) radius of the exit lights and exit signs.
HOA.105556295.10 37
Enclosure A
1613.10.4.3 Emergency systems.
Independent supports and braces shall be provided for light fixtures required for exit illumination. Power supply for exit illumination shall comply with the requirements of Section 1008.2.4 of this Code.
1613.10.4.4 Supports for appendages.
Separate support from the structural deck shall be provided for all appendages such as light fixtures, air diffusers, exit signs, and similar elements.
SECTION 24. Section 1704.2.3 is hereby amended to read as follows:
1704.2.3 Statement of special inspections.
The applicant shall submit a statement of special inspections in accordance with Section 106.4107.1 as a condition for permit issuance. This statement shall be in accordance with Section 1704.3.
SECTION 25. Section 1704.6 is hereby amended to read as follows:
1704.6 Structural observations.
Where required by the provisions of Section 1704.6.1 the owner or the owner's authorized agent shall employ a registered design professionalstructural observer to perform structural observations. The structural observer shall visually observe representative locations of structural systems, details and load paths for general conformance to the approved construction documents. Structural observation does not include or waive the responsibility for the inspections in Section 440108 or the special inspections in Section 1705 or other sections of this eCode. The structural observer HOA.105556295.10 38
Enclosure A
shall be one of the following individuals:
1. The registered design professional responsible for the structural design, or
2. A registered design professional designated by the registered design professional responsible for the structural design.
Prior to the commencement of observations, the structural observer shall submit to the bBuilding ©Official a written statement identifying the freguency and extent of structural observations.
At the conclusion of the work included in the permit, the structural observer shall submit to the building official a written statement that the site visits have been made and identify any reported deficiencies that, to the best of the structural observer'; knowledge, have not been resolved.
The owner or owner's authorized agent shall coordinate and call a preconstruction meeting between the structural observer, contractors, affected subcontractors, and special inspectors. The structural observer shall preside over the meeting. The purpose of the meeting shall be to identify the major structural elements and connections that affect the vertical and lateral load resisting systems of the structure and to review scheduling of the reguired observations. A record of the meeting shall be included in the report submitted to the Building OfficialObserved deficiencies shall be reported in writing to the owner or owner's authorized agent, special inspector, contractor, and the Building Official. Upon the form prescribed by the Building Official, the structural observer shall submit to the Building Official a written statement at each significant construction stage stating that the site HOA.105556295.10 39
Enclosure A
visits have been made and identifying any reported deficiencies that, to the best of the structural observer's knowledge, have not been resolved. A final report by the structural observer, which states that all observed deficiencies have been resolved, is reguired before acceptance of the work by the Building Official.
SECTION 26. Section 1704.6.1 is hereby amended to read as follows:
1704.6.1 Structural observations for structures.
3. The structure is assigned to Seismic Design Category E, and is greater than two stories above the grade planeA lateral design is reguired for the structure or portion thereof.
Exception: One-story wood framed Group R-3 and Group U Occupancies less than 2,000 sguare feet in area, provided the adjacent grade is not steeper than 1 unit vertical in 10 units horizontal (10 percent sloped), assigned to Seismic Design Category D.
SECTION 27. Section 1705.3 is hereby amended to read as follows:
1705.3 Concrete Construction.
Special inspections and tests of concrete construction shall be performed in accordance with this section and Table 1705.3.
Exception: Special inspections and tests shall not be reguired for:
HOA.105556295.10 40
Enclosure A
1. Isolated spread concrete footings of buildings three stories or less above grade plane that are fully supported on earth or rock where the structural design of the footing is based on a specified compressive strength (f’c) not greater than 2,500 pounds per sguare inch (psi) (17.2 Mpa) regardless of the compressive strength specified in the construction documents or used in the footing construction.
4. Concrete foundation walls constructed in accordance with Table 1807.1.6.2.
54. Concrete patios, driveways and sidewalks, on grade.
SECTION 28. Section 1705.13 is hereby amended to read as follows:
1705.13 Special inspections for seismic resistance.
Exception: The special inspections specified in Sections 1705.13.1 through 1705.13.9 are not reguired for structures designed and constructed in accordance with one of the following:
3. The structure is a detached one- or two-family dwelling not exceeding two stories above grade plane, provided the structure is not assigned to Seismic Design Category D, E, or F and does not have any of the following horizontal or vertical irregularities in accordance with Section 12.3 of ASCE 7:
HOA.105556295.10 41
Enclosure A
SECTION 29. Section 1807.1.4 is hereby amended to read as follows:
1807.1.4 Permanent wood foundations systems.
Permanent wood foundation systems shall be designed and installed in accordance with AWC PWF. Lumber and plywood shall be preservative treated in accordance with AWPA U1 (Commodity Specification A, Special Requirement 4.2), and shall be identified in accordance with Section 2303.1.9.1. Permanent wood foundation systems shall not be used for structures assigned to Seismic Design Category D, E, or F.
SECTION 30. Section 1807.1.6 is hereby amended to read as follows:
1807.1.6 Prescriptive design of concrete and masonry foundation walls.
Concrete and masonry foundation walls that are laterally supported at the top and bottom shall be permitted to be designed and constructed in accordance with this section. Prescriptive design of foundation walls shall not be used for structures assigned to Seismic Design Category D, E, or F.
SECTION 31. Section 1807.2 is hereby amended to read as follows:
1807.2 Retaining walls.
Retaining walls shall be designed in accordance with Section 1807.2.1 through 1807.2.4. Retaining walls assigned to Seismic Design Category D, E, or F shall not be partially or wholly constructed of wood.
HOA.105556295.10 42
Enclosure A
SECTION 32. Section 1807.3.1 is hereby amended to read as follows:
1807.3.1 Limitations.
The design procedures outlined in this section are subject to the following limitations:
1. The frictional resistance for structural walls and slabs on silts and clays shall be limited to one-half of the normal force imposed on the soils by the weight of the footing or slab.
2. Posts embedded in earth shall not be used to provide lateral support for structural or nonstructural materials such as plaster, masonry or concrete unless bracing is provided that develops the limited deflection required.
Wood poles shall be treated in accordance with AWPA U1 for sawn timber posts (Commodity Specification A, Use Category 4B) and for round timber posts (Commodity Specification B, Use Category 4B). Wood poles and posts embedded in direct contact with soil shall not be used for structures assigned to Seismic Design Category D, E, or F.
Wood poles and posts embedded in accordance with Methods 2 and 3 of Section 1807.3.3 shall not be permitted for structures assigned to Seismic Design Category D, E, or F, except when used to support nonhabitable, nonoccupiable structures such as fences when approved by the Building Official.
HOA.105556295.10 43
Enclosure A
SECTION 33. Section 1809.3 is hereby amended to read as follows:
1809.3 Stepped footings.
For structures assigned to Seismic Design Category D, E, or F, the stepping reguirement shall also apply to the top surface of continuous footings supporting walls.
Footings shall be reinforced with four No. 4 reinforcing bars. Two bars shall be located at the top and bottom of the footings as shown in Figure 1809.3.
SECTION 34. Figure 1809.3 is hereby added to read as follows:
RECOMMEND:
a
/
BOTTOM PLATE (TYP.)
—
/ GRADE
-
TIIII—— r
IIIIIEIIIIIEIIIIIE ITT
IIT TTTTT -
TrtTT Tmr 1
lilieilll=illTEII|T
FIGURE 1809.3
STEPPED FOOTING
HOA.105556295.10 44
a > b
b < 2' 0"
MIN. 2 - #4 REINFORCING BARS
(TOP & BOTTOM)
Enclosure A
SECTION 35. Section 1809.7 is hereby amended to read as follows:
1809.7 Prescriptive footings for light-frame construction.
Where a specific design is not provided, concrete or masonry-unit footings supporting walls of light-frame construction shall be permitted to be designed in accordance with Table 1809.7. Prescriptive footings in accordance with Table 1809.7 shall not be used to support structures that exceed one story above grade plane and are assigned to Seismic Design Category D, E, or F.
SECTION 36. Table 1809.7 is hereby amended to read as follows:
TABLE 1809.7
PRESCRIPTIVE FOOTINGS SUPPORTING WALLS OF
LIGHT-FRAME CONSTRUCTION a b c d e
2 15 6
3 18 89
c. Interior stud-bearing walls shall be permitted to be supported by isolated footings. The footing width and length shall be twice the width shown in this table, and footings shall be spaced not more than 6 feet on center.[Reserved], g. Plain concrete footings for Group R-3 occupancies shall be permitted to be 6 inches thickfDeletedT
HOA.105556295.10 45
WIDTH OF
FOOTING (inches)
12 THICKNESS OF
FOOTING (inches)
6 NUMBER OF FLOORS
SUPPORTED BY THE FOOTINGf
1
Enclosure A
SECTION 37. Section 1809.12 is hereby amended to read as follows:
1809.12 Timber footings.
Timber footings shall be permitted for buildings of Type V construction and as otherwise approved by the bBuilding eOfficial. Such footings shall be treated in accordance with AWPA U1 (Commodity Specification A, Use Category 4B). Treated timbers are not required where placed entirely below permanent water level, or where used as capping for wood piles that project above the water level over submerged or marsh lands. The compressive stresses perpendicular to grain in untreated timber footings supported upon treated piles shall not exceed 70 percent of the allowable stresses for the species and grade of timber as specified in the ANSI/AWC NDS._ Timber footings shall not be used in structures assigned to Seismic Design Category D, E, or F.
SECTION 38. Section 1810.3.2.4 is hereby amended to read as follows:
1810.3.2.4 Timber.
Timber deep foundation elements shall be designed as piles or poles in accordance with ANSI/AWC NDS. Round timber elements shall conform to ASTM D25.
Sawn timber elements shall conform to DOC PS-20. Timber shall not be used in structures assigned to Seismic Design Category D, E, or F.
HOA.105556295.10 46
Enclosure A
SECTION 39. Section 1905.1 is hereby amended to read as follows:
1905.1 General.
In addition to the provisions of ACI 318, structural concrete shall comply with the requirements of Section 1905. The text of ACI 318 shall be modified as indicated in Sections 1905.8 through 1905.10.
SECTION 40. Section 1905.6.2 is hereby amended to read as follows:
1905.6.2 Seismic Design Categories C, D, E, and F.
Structures assigned to Seismic Design Category C, D, E or F shall not have elements of structural plain concrete, except as follows:
1. Structural plain concrete basement, foundation or other walls below the base as defined in ASCE/SEI 7 are permitted in detached one- and two-family dwelling three stories or less in height constructed with stud-bearing walls. In dwellings assigned to Seismic Design Category D or E, the height of the wall shall not exceed 8 feet (2d 38 shall not be less than 71 inches (190 mm), and the wall shall retain no more than d feet (1219 mm) of unbalanced fill. Walls shall have reinforcement in accordance with 14.6.1 of ACI318.Concrete used for fill with a minimum cement content of 2 sacks of Portland cement or cementious material per cubic yard.
2. Isolated footings of plain concrete supporting pedestals or columns are permitted, provided that the projection of the footing beyond the face of the supported member does not exceed the footing thickness.
Exception: In detached one- and two-family dwellings three stories or less in height, the projection of the footing beyond the face of the supported member i HOA.105556295.10 47
mm), the thickness
Enclosure A
permitted to exceed the footing thickness.
3. Plain concrete footings supporting walls are permitted, provided that the footings have at least two continuous longitudinal reinforcing bars. Bars shall not be smaller than No. 4 and shall have a total area of not less than 0.002 times the gross cross-sectional area of the footing. For footings that exceed 8 inches (203 mm) in thickness,nNot fewer than one bar shall be provided at the top and bottom of the footing. Continuity of reinforcement shall be provided at corners and intersections.
Exceptions:
1. Where assigned to Seismic Design Category C, dDetached one- and twofamily dwellings three stories or less in height and constructed with stud-bearing walls are permitted to have plain concrete footings without longitudinal reinforcementwith at least two continuous longitudinal reinforcing bars not smaller than No. 4 and a total area of less than 0.002 times the gross cross-sectional area of the footing.
2. For foundation systems consisting of a plain concrete footing and a plain concrete stemwall, not fewer than one bar shall be provided at the top of the stemwall and at the bottom of the footing.
3. Footings cast monolithically with a slab-on-ground shall have not fewer than one No. 4 bar at the top and bottom of the footing or one No. 5 bar or two No. 4 bars in the middle third of the footing depth.
HOA.105556295.10 48
Enclosure A
SECTION 41. Section 1905.7 is hereby amended to read as follows:
1905.7 Design requirements for anchors.
For the design requirements for anchors, Sections 1905.7.1 and 1905.7.2 provide exceptions that are permitted to ACI 318. These requirements shall be applicable to all buildings.
SECTION 42. Section 1905.8 is hereby added to read as follows:
1905.8 ACI 318, Section 18.7.5.
Modify ACI 318, Section 18.7.5, by adding Sections 18.7.5.8 and 18.7.5.9 as follows:
18.7.5.8 Where the calculated point of contraflexure is not within the middle half of the member clear height, provide transverse reinforcement as specified in ACI 318, Section 18.7.5.1, Items (a) through (c), over the full height of the member.
18.7.5.9 At any section where the design strength, ©Pn, of the column is less than the sum of the shears Ve computed in accordance with ACI 318, Sections 18.7.6.1 and 18.6.5.1, for all the beams framing into the column above the level under consideration, transverse reinforcement as specified in ACI 318, Sections 18.7.5.1 through 18.7.5.3, shall be provided. For beams framing into opposite sides of the column, the moment components may be assumed to be of opposite sign. For the determination of the design strength, QPn, of the column, these moments may be assumed to result from the deformation of the frame in any one principal axis.
HOA.105556295.10 49
Enclosure A
SECTION 43. Section 1905.9 is hereby added to read as follows:
1905.9 ACI 318, Section 18.10.4.
Modify ACI 318, Section 18.10.4, by adding Section 18.10.4.7 as follows:
18.10.4.7 Walls and portions of walls with Pu > 0.35Po shall not be considered to contribute to the calculated shear strength of the structure for resisting earthquakeinduced forces. Such walls shall conform to the requirements of ACI 318, Section 18.14.
SECTION 44. Section 1905.10 is hereby added to read as follows:
1905.10 ACI 318, Section 18.12.6.
Modify ACI 318, by adding Section 18.12.6.2, as follows:
18.12.6.2 Collector and boundary elements in topping slabs placed over precast floor and roof elements shall not be less than 3 inches (76 mm) or 6 db in thickness, where db is the diameter of the largest reinforcement in the topping slab.
SECTION 45. Section 2304.10.2 is hereby amended to read as follows:
2304.10.2 Fastener requirements.
Connections for wood members shall be designed in accordance with the appropriate methodology in Section 2302.1. The number and size of fasteners connecting wood members shall not be less than that set forth in Table 2304.10.2.
Staple fasteners in Table 2304.10.2 shall not be used to resist or transfer seismic forces in structures assigned to Seismic Design Category D, E, or F.
HOA.105556295.10 50
Enclosure A
Exception: Staples may be used to resist or transfer seismic forces when the allowable shear values are substantiated by cyclic testing and approved by the Building Official.
SECTION 46. Table 2304.10.2 is hereby amended to read as follows:
TABLE 2304.10.2
FASTENING SCHEDULE^
h. Staples shall not be used to resist or transfer seismic forces in structures assigned to Seismic Design Category D, E, or F.
SECTION 47. Section 2304.10.3.1 is hereby added to read as follows:
2304.10.3.1 Quality of nails.
In Seismic Design Category D, E, or F, mechanically-driven nails used in wood structural panel shear walls shall meet the same dimensions as that reguired for handdriven nails, including diameter, minimum length, and minimum head diameter. Clipped head or box nails are not permitted in new construction. The allowable design value for clipped head nails in existing construction may be taken at no more than the nail-headarea ratio of that of the same size hand-driven nails.
HOA.105556295.10 51
Enclosure A
SECTION 48. Section 2304.12.2.8 is hereby amended to read as follows:
2304.12.2.8 Wood used in retaining walls and cribs.
Wood installed in retaining or crib walls shall be preservative treated in accordance with AWPA U1 for soil and freshwater use. Wood shall not be used in retaining or crib walls for structures assigned to Seismic Design Category D, E, or F.
SECTION 49. Section 2305.4 is hereby added to read as follows:
2305.4 Hold-down connectors.
In Seismic Design Category D, E, or F, hold-down connectors shall be designed to resist shear wall overturning moments using 75 percent of the allowable seismic load values. Such values shall be established in a valid research report from approved sources or by accepted engineering practice and the provisions of this Code.
Exception: Values established by specialized cyclic and dynamic testing may be used when approved by the Building Official in accordance with Section 104.2.8.
Connector bolts into wood framing shall reguire steel plate washers on the post on the opposite side of the anchorage device. Plate size shall be a minimum of
0.229 inches by 3 inches by 3 inches (5.82 mm by 76 mm by 76 mm) in size. Holddown connectors shall be tightened to finger tight plus one-half (1/2) wrench turn just prior to covering the wall framing.
HOA.105556295.10 52
Enclosure A
SECTION 50. Section 2306.2 is hereby amended to read as follows:
Wood-frame diaphragms.2306.2
Wood-frame diaphragms shall be designed and constructed in accordance with AWC SDPWS. Where panels are fastened to framing members with staples, requirements and limitations of AWC SDPWS shall be met and the allowable shear values set forth in Table 2306.2(1) or 2306.2(2) shall only be permitted for structures assigned to Seismic Design Category A, B, or C.
Exception: Allowable shear values where panels are fastened to framing members with staples may be used if such values are substantiated by cyclic testing and approved by the Building Official.
The allowable shear values in Tables 2306.2(1) and 2306.2(2) are permitted to be increased 40 percent for wind design.
Wood structural panel diaphragms used to resist seismic forces in structures assigned to Seismic Design Category D, E, or F shall be applied directly to the framing members.
Exception: Wood structural panel diaphragms are permitted to be fastened over solid lumber planking or laminated decking, provided the panel joints and lumber planking or laminated decking joints do not coincide.
HOA.105556295.10 53
Enclosure A
SECTION 51. Section 2306.3 is hereby amended to read as follows:
Wood-frame shear walls.2306.3
Wood-frame shear walls shall be designed and constructed in accordance with AWC SDP WS■ For structures assigned to Seismic Design Category D, E, or F, application of Tables 4.3A and 4.3B of AWC SDPWS shall include the following:
1. Wood structural panel thickness for shear walls shall not be less than 3/8 inch thick and studs shall not be spaced at more than 16 inches on center.
2. The maximum nominal unit shear capacities for 3/8 inch wood structural panels resisting seismic forces in structures assigned to Seismic Design Category D, E, or F is 560 pounds per linear foot (plf).
Exception: Other nominal unit shear capacities may be permitted if such values are substantiated by cyclic testing and approved by the Building Official.
3. Nails shall be placed not less than 1/2 inch from the panel edges and not less than 3/8 inch from the edge of the connecting members for shears greater than 350 plf using ASP or 500 plf using LRFD. Nails shall be placed not less than 3/8 inch from panel edges and not less than 1/4 inch from the edge of the connecting members for shears of 350 plf or less using ASP or 500 plf or less using LRFD.
For structures assigned to Seismic Design Category D, E, or F, application of Table 4.3B of ANSI/AWC SDPWS shall not be allowed.
For structures assigned to Seismic Design Category D, E, or F, application of Table 4.3C of ANSI/AWC SDPWS shall not be used below the top level in a multi-level building.
HOA.105556295.10 54
Enclosure A
Where panels are fastened to framing members with staples, requirements and limitations of AWC SDPWS shall be met and the allowable shear values set forth in Table 2306.3(1), 2306.3(2) or 2306.3(3) shall only be permitted for structures assigned to Seismic Design Category A, B, or C.
Exception: Allowable shear values where panels are fastened to framing members with staples may be used if such values are substantiated by cyclic testing and approved by the Building Official.
The allowable shear values in Tables 2306.3(1) and 2306.3(2) are permitted to be increased 40 percent for wind design. Panels complying with ANSI/APA PRP-210 shall be permitted to use design values for Plywood Siding in the AWC SDPWS.
Wood structural panel shear walls used to resist seismic forces in structures assigned to Seismic Design Category D, E, or F shall be applied directly to the framing members.
SECTION 52. Section 2307.2 is hereby added to read as follows:
2307.2 Wood-frame panel shear walls.
Wood-frame shear walls shall be designed and constructed in accordance with Section 2306.3 as applicable.
SECTION 53. Table 2308.10.1 is hereby amended to read as follows:
HOA.105556295.10 55
Enclosure A
b
LIB
■
••
350” Each end and < 25'- 0" o.c. Each end and s 25'- 0" o.c. 12'- 6" A and B •E35'- O' Each end and < 25'- O' o.c. Each end and s 25'- 0" o.c. 12'- 6” 35'- O' NP Each end andi 25'- O' o c. Each end and < 25'- 0" o.c. 12-6' 35'- 0" NP Each end and< 25'- 0" o.c.Each end and < 25 - 0" o.c. 12'-6" C
35'- O' NP 12'-6"
25'- O' NP 8'-0'
HOA.105556295.10 56
SEISMIC
DESIGN
CATEGORY
MAXIMUM
SPACING OF
BRACED
WALL LINES
0.5 s S <075: Each end
and <25-0" o.c. (minimum 32% of wall length)'
MAXIMUM DISTANCE
OF BRACED WALL
PANELS FHOM EACH
END OF BRACED
WALL LINE
0.75 < SK < 1.00: Each end
and < 25'- 0" o.c. (minimum 37% of wall lengthy
Each end and
s 25'- O' o.c.
05s Sos <0.75: Each end
and £25'- V o.c. (minimum
59% of wall length)'
Spn > 1.00: Each end and £
25'- O' o.c. (minimum
100% of wall length)'
Sos < 0.50 Each end and £
25'- O' o.c. (minimum 21%
of wall length /
Each end and £ 25'- 0" o.c.
(minimum 25% of wall
length)*
Sos < 0.50: Each end and £
25'- O' o.c. (minimum 43%
of wall length)'
TABLE 2308.10.1
WALL BRACING REQUIREMENTS
Each end and £ 25'- 0" o.c.
(minimum 25% of w all
lengthy
Sos > 1.00 Each end and £
25'- 0" o.c. (minimum48%
of wall length)*
0.75 < Sps < 1.00: Each end
and < 25'- 0" o.c. (minimum
75% of wall length)
For Si. 1 inch = 25-1 nine 1 foot = 304.8 mm
NP = Not Permitted.
a. This table specifies minimum requirements for braced wall panels along interior or exterior braced wall lines. b. See Section 2308.6.3 for full description of bracing methods. c. For Method GB, gypsum wallboard applied to framing supports that are spaced at 16 inches on center. d The required lengths shall be doubled for gypsum board applied to only one face of a braced wall panel e. Percentage shown represents the minimum amount of bracing required along the building length (or wall length if the structure has an irregular shape). f DWB, SFB, PBS, and HPS wall braces are not permitted in Seismic Design Catergorics D or E. & Minimum length of panel bracing of ait face of the "all for WSP sheathing shall Vs at least 4‘-0" long or both faces of beat least S-0" long: h/w ratio shall not exceed 2:1. Wall framing to which sheathing used for bracing is applied shall be nominal 2 inch wide actual 1 1/2 inch 138 mm i or larger members and spaced a maximum of 16 inches on center. Braced wall panel constriction tpes shall n h, WSP sheathing shall be a minimum of 1 5/32" thick nailed with 8d common placed 3/8 indies from panel edges and spaced not more than 6 inches on center and 12 inches on center along intermediate naming menbers.
STORY
CONDITION (SEE
SECTION 2308.2)
Each end and
<25‘-0"o.c.
Le"
D and E
BRACED PANEL LOCATION.
SPACING (O.C.) AND MINIMUM PERCENTAGE (X)
Bracing method’
OWB WSP SFB, PBS. PCP HPS GB ’
Enclosure A
SECTION 54. Section 2308.10.5.1 is hereby amended to read as follows:
2308.10.5.1 Alternate braced wall (ABW).
An ABW shall be constructed in accordance with this section and Figure 2308.6.5.1. In one-story buildings, each panel shall have a length of not less than 2 feet 8 inches (813 mm) and a height of not more than 10 feet (3048 mm). Each panel shall be sheathed on one face with 3/8-inch (3.2 mm) minimum-thickness wood structural panel sheathing nailed with 8d common or galvanized box nails in accordance with Table 2304.10.2 and blocked at wood structural panel edges. For structures assigned to Seismic Design Category D or E, each panel shall be sheathed on one face with 15/32-inch minimum-thickness (11.9 mm) wood structural panel sheathing nailed with 8d common nails spaced 3 inches on panel edges, 3 inches at intermediate supports. Two anchor bolts installed in accordance with Section 2308.7.1 shall be provided in each panel. Anchor bolts shall be placed at each panel outside guarter points. Each panel end stud shall have a hold-down device fastened to the foundation, capable of providing an approved uplift capacity of not less than 1,800 pounds (8006 N).
The hold-down device shall be installed in accordance with the manufacturer’s recommendations. The ABW shall be supported directly on a foundation or on floor framing supported directly on a foundation that is continuous across the entire length of the braced wall line. This foundation shall be reinforced with not less than one No. 4 bar top and bottom. Where the continuous foundation is reguired to have a depth greater than 12 inches (305 mm), a minimum 12-inch by 12-inch (305 mm by 305 mm) continuous footing or turned-down slab edge is permitted at door openings in the braced HOA.105556295.10 57
Enclosure A
wall line. This continuous footing or turned-down slab edge shall be reinforced with not less than one No. 4 bar top and bottom. This reinforcement shall be lapped 1524 inches (384610 mm) with the reinforcement required in the continuous foundation located directly under the braced wall line.
SECTION 55. Figure 2308.10.5.1 is hereby amended to read as follows:
2’8 MIN PANEL
LENGTH
---- a ।. —ed COMON OR GALANEED BOX NAILS AT6O.C
SHEATHING ON ONE FACE-----
MIN 2x4 FRAMING MIN DCELE il
STUDS REQUIRED
—ANCHOR BOLTS PER SECTION 2308 6 5 1
/
"Es
------
SECTION 56. Section 2308.10.5.2 is hereby amended to read as follows:
2308.10.5.2 Portal frame with hold-downs (PFH).
A PFH shall be constructed in accordance with this section and Figure 2308.10.5.2. The adjacent door or window opening shall have a full-length header.
In one-story buildings, each panel shall have a length of not less than 16 inches (406 mm) and a height of not more than 10 feet (3048 mm). Each panel shall be sheathed on one face with a single layer of 3/8-inch (9.5 mm) minimum-thickness wood HOA.105556295.10 58
<1
II
T
H
H
II
II
II
II
II
II
II
II
" /
y
MIN 'li' THICK WOOD
STRUCTURAL PANEL
AT PANEL EDGES FOR SINGLE STORY AND AT 4' O C
AT PANEL EDGES FOR THE FIRST OF 2 STORIES
STUDS UNDER HEADER AS -
REQUIRED
MINIMUM REINFORCING Of FOUNDATION, ONE #4
BAR TOP AND BOTTOM Of FOOTING REINFORCING
SHALL BE LAPPED 46 24 INCHES MIN
T
1 HOLD-DOWN PER SECTION- .
2308.6 5 1
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
a ft1; structures auskaned to Seksmkc Ct tail Cateon YDNE shesthed on ait rac wih 1532-nch-minmuy-thtekne FIGURE 2308.10.5.1
ALTERNATE BRACED WALL PANEL (ABW)
/
/
I
I
I
I
I
I
5Li
FOR PANEL SPLICE (IF NEEDED) ADJOINING PANEL
EDGES SH ALL MEET OVER AND BE FASTENED TO
COMMON FRAMING
il
il
il
II
s
2 co
o
Enclosure A
structural panel sheathing nailed with 8d common or galvanized box nails in accordance with Figure 2308.10.5.2. For structures assigned to Seismic Design Category D or E, each panel shall be sheathed on one face with 15/32-inch minimum-thickness (11.9 mm) wood structural panel sheathing nailed with 8d common nails spaced 3 inches on panel edges, 3 inches at intermediate supports and in accordance with Figure 2308.10.5.2. The wood structural panel sheathing shall extend up over the solid sawn or glued-laminated header and shall be nailed in accordance with Figure 2308.10.5.2. A built-up header consisting of at least two 2-inch by 12-inch (51 mm by 305 mm) boards, fastened in accordance with Item 24 of Table 2304.10.1 shall be permitted to be used. A spacer, if used, shall be placed on the side of the built-up beam opposite the wood structural panel sheathing. The header shall extend between the inside faces of the first full-length outer studs of each panel. The clear span of the header between the inner studs of each panel shall be not less than 6 feet (1829 mm) and not more than 18 feet (5486 mm) in length. A strap with an uplift capacity of not less than 1,000 pounds (4,400 N) shall fasten the header to the inner studs opposite the sheathing. One anchor bolt not less than 5/8 inch (15.9 mm) diameter and installed in accordance with Section 2308.3.1 shall be provided in the center of each sill plate. The studs at each end of the panel shall have a hold-down device fastened to the foundation with an uplift capacity of not less than 3,500 pounds (15 570 N).
Where a panel is located on one side of the opening, the header shall extend between the inside face of the first full-length stud of the panel and the bearing studs at the other end of the opening. A strap with an uplift capacity of not less than HOA.105556295.10 59
Enclosure A
1,000 pounds (4400 N) shall fasten the header to the bearing studs. The bearing studs shall also have a hold-down device fastened to the foundation with an uplift capacity of not less than 1,000 pounds (4400 N). The hold-down devices shall be an embedded strap type, installed in accordance with the manufacturer’s recommendations. The PFH panels shall be supported directly on a foundation that is continuous across the entire length of the braced wall line. This foundation shall be reinforced with not less than one No. 4 bar top and bottom. Where the continuous foundation is required to have a depth greater than 12 inches (305 mm), a minimum 12-inch by 12-inch (305 mm by 305 mm) continuous footing or turned-down slab edge is permitted at door openings in the braced wall line. This continuous footing or turned-down slab edge shall be reinforced with not less than one No. 4 bar top and bottom. This reinforcement shall be lapped not less than 4524 inches (384610 mm) with the reinforcement required in the continuous foundation located directly under the braced wall line.
HOA.105556295.10 60
Enclosure A
SECTION 57. Figure 2308.10.5.2 is hereby amended to read as follows:
MIN. 1000 LB TIE-DOWN
DEVICE J FEET
MIN ,3x11 25' NET HEADER
6TO1B'
1 000 lb STRAP CPPOS ITE SHEATHING
I
1 !
|
MiN DOUBLE 2x4 POST
“kSECTION 58. Section 2308.10.8.1 is hereby amended to read as follows:
2308.10.8.1 Foundation requirements.
Exception: For structures with a maximum plan dimension not more than 50 feet (15 240 mm), continuous foundations are required at exterior walls only for structures assigned to Seismic Design Category A, B, or C.
For structures in Seismic Design Categories D and E, exterior braced wall panels shall be in the same plane vertically with the foundation or the portion of the structure HOA.105556295.10 61
■
For SI: 1 inch = 25.4 mm. 1 foot = 304.8 mm, ! pFIGURE 2308.10.5.2 a tor structures assigned to Sesmic Design Cntegury D or E, shenthed MI une fate with 15132- mch-minimum-thickress[11.9 nn) mood structurni panel sheathing.
MIN 1000 LB TE DOWN
DEVICE
FASTEN TOP PLATE TO HEADER WITH TWO
ROWS OF 16d SINKER HAILS AT 3" OC TYP
___________EXTENT OF HEADER_________________
SINGLE PORTAL FRAME (ONE BRACED WALL PANEL >
I
I
TYPICAL PORTAL FRAME
CONSTRUCTION-----------
FASTEN SHEATHING TO HEADER WITH dd COMMON
OR GALVANIZED BOX NAILS IN 3' GRID PATTERN AS
SHOWN AND 3' 0 C IN ALL FRAMING (STUDS.
BLOCKING AND SLLS) TYP
MIN . WIDTH = Iff FOR ONE STORY STRUCTURES
MIN WIDTH = 24' FOR USE IN FRST OF TWO STORY
STRUCTURES
y
O
_________________ EXTENT OF HEADER____________
DOUBLE PORTAL FRAME (TwO BRACED WALL PANELS)
FIGURE 2308.6.5.2
PORTAL FRAME WITH HOLD-DOWNS (PFH)
5 UJ T
X
3 nr
|
5 t
FOR PANEL SPLICE (IF
NEEDED) PANEL EDGES
SHALL BE BLOCKED AND
OCCUR WITHIN MIDDLE
24 IN OF PORTAL HEIGHT
ONE ROW OF TYPICAL
SHEATHING-TO-FRAMING
NAILING IS REQUIRED
AT EACH PANEL EDGE
IF 2x4 DOUBLE BLOCKING
IS USED THE 2x4S MUST .
BE NAILED TOGETHER /
'WITH (31162 SINKERS —
I
‘hk CA " a
!
i
SAEE -aw
.— MiN 2x4 FRAMING
.------ MN THICKNESS'WOOD a
STRUCTURAL PANEL SHEATH NG
-MN 3500 LB TIE -DOWN DEVICE (EMBEDDED INTO
. CONCRETE AND NAILED INTO FRAMING IN
r ACCORDANCE WITH MANUFACTURER'S
RFCOMMF NDATIONS)
- ------ SEE SECTION 2308 6.52—
Enclosure A
containing the offset shall be designed in accordance with accepted engineering practice and Section 2308.3.
Exceptions:
1. Exterior braced wall panels shall be permitted to be located not more than 4 feet (1219 mm) from the foundation below where supported by a floor constructed in accordance with all of the following:
1.1. Cantilevers or setbacks shall not exceed four times the nominal depth of the floor joists.
1.2. Floor joists shall be 2 inches by 10 inches (51 mm by 254 mm) or larger and spaced not more than 16 inches (406 mm) on center.
1.3. than 2
to1.
1.4. Floor joists at ends of braced wall panels shall be doubled.
1.5. A continuous—rim joist shall—be connected to the—ends of than 0.058 inch (1.47 mm) (16 galvanized gage) and 11/2 inches (38 mm) in width fastened with six 16d common nails on each side. The metal tie shall have a yield stress not less than 33,000 psi (227 MPa).
1.6. Joists at setbacks or the end of cantilevered joists shall not carry gravity loads from more than a single story having uniform wall and roof loads nor carry the reactions from headers having a span of 8 feet (2438 mm) or more.
2. The end of a required braced wall panel shall be allowed to extend not HOA.105556295.10 62
cantilevered joists. The rim joist is permitted to be spliced using a metal tie not less The ratio of the back span to the cantilever shall be not less
Enclosure A
applicable to braced wall panels offset in plane and braced wall panels offset out of plane as permitted by Exception 1. Braced wall panels are permitted to extend over an opening not more than 8 feet (2438 mm) in width where the header is a 4-inch by 12 inch (102 mm by 305 mm) or larger member.
SECTION 59. Section 2308.10.9 is hereby amended to read as follows:
2308.10.9 Attachment of sheathing.
Fastening of braced wall panel sheathing shall not be less than that prescribed in Tables 2308.10.1 or 2304.10.2. Wall sheathing shall not be attached to framing members by adhesives. Staple fasteners in Table 2304,10.2 shall not be used to resist or transfer seismic forces in structures assigned to Seismic Design Category D, E, or F.
Exception: Staples may be used to resist or transfer seismic forces when the allowable shear values are substantiated by cyclic testing and approved by the Building Official.
All braced wall panels shall extend to the roof sheathing and shall be attached to parallel roof rafters or blocking above with framing clips (18 gauge minimum) spaced at maximum 24 inches (6096 mm) on center with four 8d nails per leg (total eight 8d nails per clip). Braced wall panels shall be laterally braced at each top corner and at maximum 24-inch (6096 mm) intervals along the top plate of discontinuous vertical framing.
HOA.105556295.10 63
more than 1 foot (305 mm) over an opening in the wall below. This reguirement is
Enclosure A
SECTION 60. Section 3114 is hereby amended to read as follows:
SECTION 3114 INTERMODAL SHIPPING CONTAINERS
3114.1 General.
Exceptions:
6. Single-unit stand-alone intermodal shipping containers used as temporary storage or construction trailer on active construction sites. Construction support facilities for uses and activities not directly associated with the actual processes of construction, including, but not limited to, offices, meeting rooms, plan rooms, other administrative or support functions shall not be exempt from Section 3114. 3114.8.4 Detailed structural design procedure.
A structural analysis meeting the reguirements of this Section shall be provided to the building official to demonstrate the structural adeguacy of the intermodal shipping containers.
3114.8.4.2 Seismic design parameters.
The seismic force-resisting system shall be designed and detailed in accordance with ASCE 7 and one of the following:
HOA.105556295.10 64
Enclosure A
3. Where all or portions of the profiled steel panel elements are retained and integrated into a seismic force-resisting system other than as permitted by Section 3114.8.4.2, Item 1, seismic design parameters shall be developed from testing and analysis in accordance with Section 104.2.39 and ASCE 7, Section 12.2.1.1 or 12.2.1.2.
3114.8.5.2 Structural design assumptions.
Where permitted by Section 3114.8.5.1, single-unit, stand-alone intermodal shipping containers shall be designed using the following assumptions for the profiled steel panel lateral-force resisting system side walls and end walls:
1. The appropriate detailing requirements contained in Chapters 16 through 23.
2. Response modification coefficient, R = 2,
3. Over strength factor, Q0 = 2.5,
4. Deflection amplification factor, Cd = 2, and
Limits on structural height, hn = 9.5 feet (2900 mm).5. 3114.8.5.3 Allowable shear.
The allowable shear for the profiled steel panel side walls (longitudinal) and end walls (transverse) for wind design and seismic design using the coefficients of Section 3114.8.5.2 shall be in accordance with Table 3114.8.5.3, provided that all of the following conditions are met:
HOA.105556295.10 65
Enclosure A
3. All side walls or end walls used as part of the lateral force-resisting system shall have an existing or new boundary element on all sides to form a continuous load path, or paths, with adequate strength and stiffness to transfer all forces from the point of application to the final point of resistance, as shown in Figure 3114.8.5.3(3). The existing door interlocking mechanism shall not be considered as a component of the reguired load path.
SECTION 61. Chapter 99 is hereby amended to read as follows:
SECTION 9903 DEFINITION OF SUBSTANDARD BUILDING
9903.1
Any building or structure or portion thereof, regardless of zoning designation or approved uses of the building, including any dwelling unit, guestroom or suite of rooms, or the premises on which the same is located, in which there exists any of the conditions listed in Section 9904 to an extent that creates a public nuisance and endangers the life, limb, health, property, safety or welfare of the occupants of the building, nearby residents, or the public, shall be deemed and hereby is declared to be a substandard building.
SECTION 9904 SUBSTANDARD CONDITIONS
9904.1 Inadequate sanitation
9904.1.5
Lack of electrical lighting as reguired by this Code.
HOA.105556295.10 66
Enclosure A
9904.1.6
Infestation of insects, vermin, or rodents as determined by a health officer or, if an agreement does not exist with an agency that has a health officer, the infestation can be determined by an appropriate code enforcement officer. 9904.1.7
Visible mold growth, as determined by a health officer or a code enforcement officer, excluding the presence of mold that is minor and found on surfaces that can accumulate moisture as part of their properly functioning and intended use. 9904.1.8
Lack of connection to reguired sewage disposal system, as reguired by the Los Angeles County Plumbing Code.
9904.1.9
Lack of adeguate garbage and rubbish storage and removal facilities, as determined by a health officer or, if an agreement does not exist with an agency that has a health officer, the lack of adeguate garbage and rubbish removal facilities can be determined by an appropriate code enforcement officer.
9904.2 Structural Hazards
9904.2.5
Defective, damaged or inadeguately constructed or sized fireplaces or chimneys.
HOA.105556295.10 67
Enclosure A
9904.2.6
Inadequate structural resistance to horizontal forces.
9904.3 Inadequate or Hazardous Wiring.
9904.3.1
All wiring except that which conformed with all applicable laws in effect at the time of installation and which has been maintained in good and safe condition and is working properly and being used in a safe manner.
9904.4 Inadequate or Faulty Plumbing.
9904.4.2
All plumbing except that which conformed with all applicable laws in effect at the time of installation and which has been maintained in good condition and which is free of cross connections and siphonage between fixtures.
9904.5 Inadequate or Faulty Mechanical Equipment.
9904.5.1
Lack of safe, adequate heating facilities in a dwelling. 9904.6 Faulty Weather Protection.
HOA.105556295.10 68
Enclosure A
9904.6.2
Lack of a sound and effective exterior wall covering or weather protection for exterior wall covering.
9904.6.4
Deteriorated or ineffective waterproofing of exterior walls, roofs, foundations. foundation walls or floor, including broken windows or doors. 9904.9 Hazardous Buildings.
9904.13 Any Nuisance.
Those premises on which contains anything which is injurious to health, including, but not limited to, the illegal sale of controlled substances, or is indecent or offensive to the senses, or an obstruction to the free use of property, so as to interfere with the comfortable enjoyment of life or property, or unlawfully obstructs the free passage or use, in the customary manner, of any navigable public space.
SECTION 62. Section H 103.1 is hereby amended to read as follows:
H103.1 Location restrictions.
Signs shall not be erected, constructed, or maintained so as to obstruct any fire escape or any window or door or opening used as part of a means of egress or as part of the accessible route, except as permitted by Chapters 10, 11 A, and 11B, or so as to prevent free passage from one part of a roof to any other part thereof. A sign shall not HOA.105556295.10 69
Enclosure A
be attached in any form, shape or manner to a fire escape, nor be placed in such manner as to interfere with any opening required for ventilation.
SECTION 63. Section H 103.2 is hereby added as follows:
H103.2 Projections and clearances.
Signs extending beyond the exterior wall of the building shall comply with Section 705.2 and the following requirements.
Signs may project over a public street, public sidewalk or building line in accordance with Section 3202 and a distance as determined by the clearance of the bottoms thereof above the level of the sidewalk or grade immediately below, whichever is more restrictive, as follows:
Clearance less than 8 feet (2438 mm) shall be prohibited.
Clearance 8 feet (2438 mm) and above, a 1-foot (305 mm) projection is permitted; and for each additional 2-foot clearance (610 mm), an additional 1-foot (305 mm) projection is permitted.
No structure shall have a projection of more than 5 feet (1524 mm). A projecting sign built above and in connection with a marquee may have such a projection of 5 feet (1524 mm) without clearance between sign and marquee. No structure shall project beyond the curb line, regardless of clearance above grade.
Signs projecting more than 6 inches (152 mm) from the face of building over private property used or intended to be used by the general public shall have a minimum clearance of 8 feet (2438 mm) above said sidewalk or grade.
HOA.105556295.10 70
Enclosure A
No sign shall project into any alley whatsoever below a height of 14 feet (4267 mm) above grade, and no sign shall project into any alley by more than 6 inches (152 mm) when its height is 14 feet (4267 mm) or more above grade.
SECTION 64. Section H 104.1 is hereby amended to read as follows:
H104.1 identification.
Every outdoor advertising display sign other than wall signs hereafter erected, constructed or maintained, for which a permit is required, shall be plainly marked with the name of the person, firm or corporation erecting and maintaining such sign, and the weight of the sign, and shall have affixed on the front thereof the permit number issued for said sign or other method of identification approved by the bBuilding ©Official.
SECTION 65. Section H 105.1 is hereby amended to read as follows:
H105.1 General requirements.
Signs shall be designed and constructed to comply with the provisions of this eCode for use of materials, loads and stresses. Glass panels used in signs shall comply with the reguirements of Chapter 24.
SECTION 66. Section H 106.1 is hereby amended to read as follows:
H106.1 Illumination.
A sign shall not be illuminated by other than electrical means, and electrical devices and wiring shall be installed in accordance with the requirements of the California Electrical Code (Title 27) of the Los Angeles County Code, and a separate electrical permit shall be obtained. Any open spark or flame shall not be used for display purposes unless specifically approved.
HOA.105556295.10 71
Enclosure A
SECTION 67. Section H 106.2 is hereby amended to read as follows:
H106.2 Electrical service.
Signs that require electrical service shall comply with NFPA 70the Electrical Code (Title 27) of the Los Angeles County Code.
SECTION 68. Section H110.1 is hereby amended to read as follows:
H110.1 General.
Roof signs shall be constructed entirely of metal or other approved noncombustible material except as provided for in Sections H106.1.1 and H 107.1.
Provisions shall be made for electric grounding of metallic parts. Where combustible materials are permitted in letters or other ornamental features, wiring and tubing shall be kept free and insulated therefrom. Roof signs shall be so constructed as to leave a clear space of not less than 6 feet (1829 mm) between the roof level and the lowest part of the sign and shall have not less than 5 feet (11524 mm) clearance between the vertical supports thereof. Roof sign structures shall not project beyond an exterior wall.
Exception: Signs on flat roofs with every part of the roof accessible shall not be reguired to provide clear space between the roof level and the lowest part of the signBlocks, angles, or supports fastened to the roof shall be located so as not to interfere with the drainage of the roof and, where necessary, flashing or counter flashing shall be placed.
HOA.105556295.10 72
Enclosure A
SECTION 69. Section H116 is hereby deleted in its entirety:
SECTION H116 REFERENCED STANDARDS
H.116.1 General.—See Table H116.1 for standards that are referenced in various sections of this appendix. Standards are listed by the standard definition with the effective date, standard title, and the section or sections of this appendix that reference the standard.
TABLE H116.1
REFERENCED STANDARDS
ASTM D635-18 H107.1.1
CEC - 25 H106.1, H106.2
NFPA 701-23 Methods of Fire Test for H106.1.1
Flame Propagation—of
Textiles and Films
SECTION 70. Section J101 is hereby amended to read as follows:
J101 GENERAL
J101.1 Scope.
The provisions of this chapterAppendix apply to grading, excavation,, and earthwork construction, including fills and embankments, and the control of runoff from graded sites, including erosion sediments and construction-related pollutants. Where conflicts occur between the technical reguirements of this chapter and the geotechnical report, the geotechnical report shall govern The purpose of this Appendix is to HOA.105556295.10 73
Test Method for Rate of
Burning—and/or—Extent
and Time of Burning of
Plastics in a Horizontal
Position______________
California Electrical Code
Enclosure A
safeguard life, limb, property, and the public welfare by regulating grading on property subject to this Code.
J101.2 Flood hazard areas.
Unless the applicant has submitted an engineering analysisa hydrology and hydraulic analysis, prepared in accordance with standard engineering practice by a registered design professionalCalifornia licensed civil engineer, that demonstrates the proposed work will not result in any increase in the level of the base flood, grading, excavation and earthwork construction, including fills and embankments, shall not be permitted in floodways designated in Chapter 11.60 of Title 11 - Health and Safety - of the Los Angeles County Code, or in floodways that are in flood hazard areas established in Section 1612.3 or in flood hazard areas where design flood elevations are specified but floodways have not been designated.
J101.3 General hazards.
Whenever the Building Official determines that any existing excavation, embankment, or fill on property subject to this Code has become a hazard to life and limb, or endangers property, or adversely affects the safety, use, or stability of a public way or drainage channel, the Building Official may give written notice thereof to the owner of the property upon which the excavation, embankment, or fill is located, or other person or agent in control of said property. Upon receipt of said notice, the owner or other person or agent in control of the property shall repair, eliminate, or secure such excavation, embankment, or fill so as to eliminate the hazard, in conformance with the reguirements of this Code, within the period specified in said notice.
HOA.105556295.10 74
Enclosure A
J101.4 Safety precautions.
If at any stage of the work the Building Official determines by inspection that unpermitted grading or grading work pursuant to a grading permit is likely to endanger any public or private property, or result in the deposition of debris on any public way, or interfere with any existing drainage course, the Building Official may order the work stopped by notice in writing served on any persons engaged in doing such work or causing such work to be done, and any such person shall immediately stop such work.
The Building Official may authorize the work to proceed if the Building Official finds that adeguate safety precautions can be taken or corrective measures incorporated in the work to avoid likelihood of such danger, deposition, or interference.
If the grading work as done was performed without a grading permit or has created or resulted in a hazardous condition, the Building Official shall give written notice reguiring correction thereof as specified in Section J103 and Section J101 of this Code.
J101.5 Protection of utilities.
Both the permittee and the owner of the property on which the grading is performed shall be responsible for the prevention of damage to any public and/or private utilities or services.
HOA.105556295.10 75
Enclosure A
Protection of adjacent property.J101.6
Both the permittee and owner of the property on which the grading is performed shall be responsible for the prevention of damage to adjacent property. No person shall excavate on land sufficiently close to the property line to endanger any adjoining public street, sidewalk, alley, or other public or private property without taking adeguate measures to support and protect such property from settling, cracking, or other damage that might result from the proposed work. Any person performing any grading that involves imported or exported materials shall take special precautions, as approved by the Building Official, to prevent such materials from being deposited on adjacent properties, any public way, and/or any drainage course.
J101.7 Storm water control measures.
Both the permittee and the owner of the property on which the grading is performed shall put into effect and maintain all precautionary measures necessary to protect adjacent water courses and public or private property from damage by erosion, flooding, and deposition of mud, debris, and construction-related pollutants originating from the site during grading and related construction activities.
J101.8 Maintenance of protective devices and rodent control.
All drainage structures and other protective devices and all burrowing rodent control measures, as shown on the grading plans approved by the Building Official, shall be maintained in a good condition and, when necessary, promptly repaired by the permittee or the owner of the property on which grading has been performed or by any other person or agent in control of such property.
HOA.105556295.10 76
Enclosure A
J101.9 Correlation with other sections.
The provisions of this Appendix are independent of the provisions of Chapter 99 - Building and Property Rehabilitation - of Title 26 of this Code. This Section may be applied even though the same facts have been used to determine that there is a building, structure, or substandard property subject to the provisions of Chapter 99.
J101.10 Conditions of approval.
In granting any permit under this Code, the Building Official may include such conditions as may be reasonably necessary to prevent the creation of a nuisance or hazard to public or private property. Such conditions may include, but shall not be limited to:
1. Improvement of any existing grading to comply with the standards of this Code.
2. Reguirements for securing of excavations or fills that would otherwise be hazardous.
3. Reguirements for temporary excavations and shoring that are to be implemented on site and shown on the plans.
4. Reguirements for mitigating, stabilizing, or eliminating unpermitted grading conducted on site.
HOA.105556295.10 77
Enclosure A
SECTION 71. Section J 102.1 is hereby amended to read as follows:
J102.1 Definitions.
The following words and terms shall, for the purposes of this appendix, have the meaning hown herein. Refer to Chapter 2 of this code for general definitionsFor the purposes of this Appendix, the terms, phrases, and words listed in this Section and their derivatives shall have the indicated meanings.
APPROVAL. When the proposed work or completed work conforms to this Appendix, as determined by and to the satisfaction of the Building Official.
AS-BUILT. See Section J105,12.
BEDROCK. The relatively solid, undisturbed rock in place either at the ground surface or beneath superficial deposits of alluvium, colluvium, and/or soil.
BENCH. A relatively level step excavated into earth material on which fill is to be placed.
BEST MANAGEMENT PRACTICE (BMP). Practices, prohibitions of practices, or other activities to reduce or eliminate the discharge of pollutants to surface waters.
BMPs include structural and nonstructural controls, management practices, operation and maintenance procedures, and system, design, and engineering methods that are reguired to be employed in order to comply with the reguirements of the National Pollution Discharge Elimination System (NPDES) permit issued to the County of Los Angeles (see Section 106.4.3 and Title 31 - Green Building Standards Code - of the Los Angeles County Code).
HOA.105556295.10 78
Enclosure A
BORROW. Earth material acquired from an off-site location for use in grading on a site.
CIVIL ENGINEER. A professional engineer licensed in the State of California to practice in the field of civil works.
CIVIL ENGINEERING. The application of the knowledge of the forces of nature, principles of mechanics, and the properties of materials to the evaluation, design, and construction of civil works.
COMPACTION. The densification of a fill by mechanical means.
CUT. See "Excavation. II
DESILTING BASINS. Physical structures, constructed for the removal of sediments from surface water runoff
DESIGN ENGINEER. The Civil Engineer responsible for the preparation of the grading plans for the site grading work.
DOWN DRAIN. A device for collecting water from a swale or ditch located on or above a slope, and safely delivering it to an approved drainage facility.
EARTH MATERIAL. Any rock, natural soil, or fill, or any combination thereof.
ENGINEERING GEOLOGIST. A geologist experienced and knowledgeable in engineering geology, holding a license as a geologist in the specialty of engineering geology issued by the State of California under the applicable provisions of the Geologist and Geophysicist Act of the Business and Professions Code.
HOA.105556295.10 79
Enclosure A
ENGINEERING GEOLOGY. The application of geologic knowledge and principles in the investigation and evaluation of naturally occurring rock and soil for use in the design of civil works.
EROSION. The wearing away of the ground surface as a result of the movement of wind, water, or ice.
EXCAVATION. The removal of earth material by artificial means, also referred to as a cut.
FIELD ENGINEER. The Civil Engineer responsible for performing the functions as set forth in Section J 105.3.
FILL. Deposition of earth materials by artificial means.
GEOTECHNICAL ENGINEER. See "Soils Engineer. fl
GEOTECHNICAL HAZARD. An adverse condition due to landslide, settlement, and/or slippage. These hazards include, but are not limited to, loose debris, slopewash, and mud flows from natural or graded slopes.
GRADE. The vertical location of the ground surface.
GRADE, EXISTING. The grade prior to grading.
GRADE, FINAL. See Section J 105.7.
GRADE, FINISHED. The grade of the site at the conclusion of all grading efforts.
GRADE, INITIAL. See Section J1057.
GRADE, ROUGH. See Section J1057.
GRADING. An excavation or fill or combination thereof.
HOA.105556295.10 80
Enclosure A
KEY. A compacted fill placed in a trench excavated in earth material beneath the toe of a slope.
LANDSCAPE ARCHITECT. A person who holds a certificate to practice landscape architecture in the State of California under the applicable landscape architecture provisions of Division 3, Chapter 3.5, of the Business and Professions Code.
LINE. The horizontal location of the ground surface.
PERMITTEE. See Section J105.6.
PRIVATE SEWAGE DISPOSAL SYSTEM. A septic tank with effluent discharging into a subsurface disposal field, into one or more seepage pits, or into a combination of a subsurface disposal field and a seepage pit or of such other facilities as may be permitted in accordance with the procedures and reguirements set forth in Title 28 - Plumbing Code - of the Los Angeles County Code and as reguired by the Los Angeles County Department of Public Health.
PROJECT CONSULTANTS. The professional consultants reguired by this Code, which may consist of the Design Engineer, Field Engineer, Soils Engineer, Engineering Geologist, and Landscape Architect as applicable to this Appendix.
PROFESSIONAL INSPECTION. The inspection reguired by this Code to be performed by the Project Consultants. Such inspections shall be sufficient to form an opinion relating to the conduct of the work.
QSD. Qualified SWPPP Developer as defined in the California State Construction General Permit.
HOA.105556295.10 81
Enclosure A
QSP. Qualified SWPPP Practitioner as defined in the California State Construction General Permit.
SITE. A lot or parcel of land or contiguous combination thereof, under the same ownership, where grading is performed or permitted.
SLOPE. An inclined surface, the inclination of which is expressed as a ratio of horizontal distance to vertical distance.
SOIL. Naturally occurring superficial deposits overlying parent bedrock.
SOILS ENGINEER (GEOTECHNICAL ENGINEER). A licensed civil engineer experienced and knowledgeable in the practice of soils engineering.
SOILS ENGINEERING (GEOTECHNICAL ENGINEERING). The application of the principles of soils mechanics in the investigation, evaluation, and design of civil works involving the use of earth materials and the inspection or testing of construction thereof.
STORM DRAIN SYSTEM. A conveyance or system of conveyances, including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, and man-made channels, designed or used for collecting and conveying storm water.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP). A site drawing with details, notes, and related documents that identify the measures proposed by the permittee to: (1) control erosion and prevent sediment and construction-related pollutants from being carried offsite by storm water, and (2) prevent non-storm-water discharges from entering the storm drain system.
SURFACE DRAINAGE. Flows over the ground surface.
HOA.105556295.10 82
Enclosure A
SOIL TESTING AGENCY. An agency regularly engaged in the testing of soils and rock under the direction of a Civil Engineer experienced in soil testing.
TERRACE. A relatively level step constructed in the face of a graded slope for drainage and maintenance purposes.
SECTION 72. Section J103 is hereby amended to read as follows:
SECTION J103 PERMITS REQUIRED
J103.1 Permits required.
Except as exempted in Section J 103.2, grading shall not be performed without first having obtained a permit therefor from the bBuilding eOfficial. A grading permit does not include the construction of retaining walls or other structures. A separate permit shall be obtained for each site and may cover both excavations and fills. Any engineered grading as described in Section J 104.2.3 shall be performed by a contractor licensed by the State of California to perform the work described hereon. Regular grading less than 5,000 cubic yards may reguire a licensed contractor if the Building Official determines that special conditions or hazards exist.
J103.2 Exemptions.
A grading permit shall not be reguired for the following:
1. When approved by the Building Official, Ggrading in an isolated, selfcontained area, provided that the public is not endangered and that such grading will not adversely affect adjoining properties or public rights of way.
HOA.105556295.10 83
Enclosure A
7. Exploratory excavations performed under the direction of a registered design professionalGeotechnical Engineer or Engineering Geologist. This shall not exempt grading of access roads or pads created for exploratory excavations.
Exploratory excavations must not create a hazardous condition to adjacent properties or the public in accordance with Section J101.3. A restoration plan must be provided and approved by the Building Official for all grading of access roads or pads. Restoration shall be completed within 90 days after the completion of soils testing unless otherwise approved by the Building Official.
An excavation that does not exceed 50 cubic yards (38.3 m3 8. ) and complies with one of the following conditions and as shown in Figure J 103.2:
Is less than 2 feet (0.6 m) in depth.
mi Does not create a cut slope greater than 5 feet (1.5 m) measured vertically upward from the cut surface to the surface of the natural grade and is not steeper than 2 units horizontal to 1 unit vertical (50 percent slope).
9. A fill not intended to support a structure that does not obstruct a drainage course and complies with one of the following conditions and as shown in Figure J103.2:
mi Is less than 1 foot (0.3 m) in depth and is placed on natural terrain with a slope flatter than 5 units horizontal to 1 unit vertical (20 percent slope).
HOA.105556295.10 84
Enclosure A
(b) Is less than 3 feet (0.9 m) in depth at its deepest point measured vertically upward from natural grade to the surface of the fill, does not exceed 50 cubic yards, and creates a fill slope no steeper than 2 units horizontal to 1 unit vertical (50 percent slope).
(c) Is less than 5 feet (1.5 m) in depth at its deepest point measured vertically upward from natural grade to the surface of the fill, does not exceed 20 cubic yards, and creates a fill slope no steeper than 2 units horizontal to 1 unit vertical (50 percent slope).
Exemption from the permit reguirements of this aAppendix shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this eCode or any other laws or ordinances of this jurisdiction.
J103.3 Unpermitted grading.
A person shall not own, use, occupy, or maintain any site containing unpermitted grading. For the purposes of this Code, unpermitted grading shall be defined as either of the following:
(1) Grading that was performed, at any point in time, without the reguired permit(s) having first been obtained from the Building Official, pursuant to Section J103.1;
121 Grading for which a permit was obtained pursuant to this Section, but which was not completed, pursuant to Section J105, prior to the expiration of the permit, pursuant to Section 106.5.4, or
HOA.105556295.10 85
Enclosure A
(3) Grading for which a permit was obtained pursuant to this Section, but where grading was performed outside the scope of the permit, pursuant to Section J105.
If the Building Official has determined that unpermitted grading was performed or has created or resulted in a hazardous condition, the Building Official shall give written notice reguiring correction thereof as specified in Section 103, and in accordance with J101 of this Code.
The Building Official may reguire such conditions as may be reasonably necessary to prevent creation of a nuisance or hazard to public or private propertySuch conditions may include, but shall not be limited to, conditions set forth in Section J101.10.
J103.4 Availability of permit at siteNo person shall perform any grading that reguires a permit under this Appendix unless a copy of the grading permit and approved grading plans are in the possession of a responsible person and available at the site for the Building Official's referenceGrading fees.J103.5 Fees shall be assessed in accordance with the provisions of this Section. The amount of the fees shall be as specified in Section 107.
1. Plan Review Fees. When a plan or other data are reguired to be submitted, a plan review fee shall be paid at the time of submitting plans and specifications for review. Separate plan review fees shall apply to retaining walls or major drainage structures as reguired elsewhere in this Code. For excavation and fill on the same site, the fee shall be based on the volume of excavation or fill, whichever is HOA.105556295.10 86
Enclosure A
greater.
2. Permit Fees. A fee for each grading permit shall be paid to the Building Official at the time of issuance of the permit. Separate permits and fees shall apply to retaining walls or major drainage structures as reguired elsewhere in this Code.
3. Site Inspection Fee. When the Building Official finds that a visual inspection of the site is necessary to establish drainage reguirements for the protection of property, existing buildings, or the proposed construction, a site inspection shall be made during plan check of grading plans. A fee for such inspection shall be paid to the Building Official at the time of submitting plans and specifications for review.
Compliance with zoning code.J103.6
The Building Official may refuse to issue a grading permit for work on a site if either the proposed grading or the proposed land use for the site shown on the grading plan application does not comply with the provisions of Title 22 - Planning and Zoning - of the Los Angeles County Code.
J103.7 Grading security.
J103.7.1 Scope and purpose.
The Building Official may reguire a permittee or the owner(s) of the property on which the grading is proposed to occur to provide security as a condition of the issuance of a grading permit for any grading involving more than 1,000 cubic yards (764.6 m3).
Where unusual conditions or special hazards exist, the Building Official may reguire security for grading involving less than 1,000 cubic yards (764.6 m3). The purpose of the security shall be to guarantee the permittee's obligation to mitigate any hazardous HOA.105556295.10 87
Enclosure A
conditions, including flood and geotechnical hazards, that may be created if the grading is not completed in accordance with the approved plans and specifications, and to complete any work that the Building Official determines is necessary to bring the property into compliance with this AppendixSecurity reguired by this Section may include incidental off-site grading on property contiguous with the site to be developed, provided written consent of the owner of such contiguous property is filed with the Building Official.
The Building Official may waive the reguirements for security for the following:
1. Grading being done by or for a governmental agency.
2. Grading necessary to remove a geotechnical hazard, where such work is covered by an agreement and security is posted pursuant to the provisions of Title 21 - Subdivisions - of the Los Angeles County Code.
3. Grading on a site, not exceeding a slope of 3 units horizontal to 1 unit vertical, provided such grading as determined by the Building Official will not affect drainage from or to adjacent properties.
4. Filling of holes or depressions, provided such grading will not affect the drainage from or to adjacent properties.
J103.7.2 Form of security.
The security referred to in Section J103.7.1 shall be in one of the following forms:
1. A bond furnished by a corporate surety authorized to do business in this state.
Cash.2.
HOA.105556295.10 88
Enclosure A
3. Savings and loan certificates or shares deposited and assigned to the County as provided in Chapter 4.36 of Title 4 - Revenue and Finance - of the Los Angeles County Code.
4. An instrument of credit from a financial institution subject to regulation by the State or federal government and pledging that funds in the amount reguired by the Building Official are on deposit and guaranteed for payment, or a letter of credit is issued by such a financial institutionAmount of security.J103.7.3 The amount of security shall be based on the number of cubic yards of material in either excavation or fill, whichever is greater, and the cost of all drainage or other protective devices or work necessary to eliminate potential flooding and geotechnical hazards. That portion of the security valuation based on the volume of material in either excavation or fill shall be computed as follows:
100,000 cubic yards or less - 50 percent of the estimated cost of grading work.
Over 100,000 cubic yards - 50 percent of the estimated cost of the first 100,000 cubic yards plus 25 percent of the estimated cost of that portion in excess of 100,000 cubic yards.
When the rough grading has been completed in conformance with the reguirements of this Code, the Building Official may, at his or her discretion, consent to a proportionate reduction of the security to an amount estimated to be adeguate to ensure completion of the grading work, site development, or planting remaining to be performed. The costs referred to in this Section shall be as estimated by the Building HOA.105556295.10 89
Enclosure A
Official.
J103.7.4 Conditions.
All security shall include conditions that the principal shall:
1. Comply with all of the provisions of this Code, applicable laws, and ordinances;
2. Comply with all of the terms and conditions of the grading permit; and
3. Complete all of the work authorized by the permit.
Term of security.J103.7.5
The term of each security shall begin upon the filing with the Building Official, and the security shall remain in effect until the work authorized by the grading permit is completed and approved by the Building Official.
J103.7.6 Default procedures.
In the event any grading for which a permit has been issued is not completed in accordance with the approved plans and specifications for said work or with all terms and conditions of the grading permit, the Building Official may declare that a default has occurred. The Building Official shall give notice thereof to the principal and surety or financial institution executing the security, or to the owner in the case of a cash bond or assignment.
The Building Official may thereafter determine the work that is necessary to mitigate any hazardous or unsafe conditions on the site and cause such work to be performed.
HOA.105556295.10 90
Enclosure A
Where the security consists of a bond or instrument of credit, the surety or financial institution executing the security shall be responsible for the payment of all costs and expenses incurred by the Building Official in causing such work to be performed, up to the full amount of the security. In the case of cash security or assignment, the Building Official may pay all costs and expenses incurred in causing such work to be performed from the funds deposited and return any unused portion of such deposit or funds to the person making said deposit or assignmentJ103.7.7 Right of entry.
The Building Official or the authorized representative of any surety company or financial institution furnishing the security shall have access to the premises described in the permit for the purpose of inspecting the workIn the event of default, as described in Section J103.7.6, the surety or financial institution furnishing the security, or the Building Official, or any person employed or engaged on the behalf of any of these parties, shall have the right to go upon the premises to perform the mitigation work, as described in Section J103.7.6.
Neither the permittee, owner, or any other person shall interfere with or obstruct the ingress into or egress from any such premises of any authorized representative of the surety or financial institution executing the security or the Building Official engaged to perform the mitigation work, as described in Section J103.7.6.
HOA.105556295.10 91
Enclosure A
SECTION 73. Figure J 103.2 is hereby added to read as follows:
EXCAVATIONS FILLS
O-LFI
NATURAL GRADE
T — — I 1
H-FT NATLRAL GRADE ==14 25 i
S50CY 500 CT
1 F_—
MATINAL GRADL
NATURAL GRADI
S20CY Hi!
■
D-"FT
(50CY L
NATURAL GRADE
FIGURE J103.2
GRADING EXEMPTION CASES
SECTION 74. Section J104 is hereby amended to read as follows:
SECTION J104 PERMIT APPLICATION AND SUBMITTALS
Submittal requirements.J104.1
In addition to the provisions of Section 105.3 and 1.8.4, as aDDlicable106.4, the applicant shall state the estimated quantities of excavation and fillfollowing:
1. The estimated quantities of excavation, fill, borrow, removal, or combination thereof.
2. The proposed land use for the site on which the grading is to be performed.
HOA.105556295.10 92
-MOI INII NCI 13 TOSPPCRT STRUCTLRIS
- DO HOT OBSTRUCT A DAAINACE COURSE
AN EXCAVATION
MHICH IS LESS
THAN 2 FT IN
DEPTH AND
COES NOT
EXCEED 50CY
FILL LESS THAN
SFT DEEP AT ITS
DEEPEST PONT
"HAT DCES NOT
EMCEED S0Y
AN EXCAVATION
MHICH CREATES
A GUT SLOPE
NIT GRATER
THAN SFT IN
HEIGHT, NOT
STEEPER THAN
21, AND DDES
NOT EXCEED
50CY
FILL LESS THAN
SFT DEEP AT ITS
DEEPEST POINT
THAT DOES NOT
EXCEED 20CY
163
FILL PLACED CN
NATURAL GRADL
NOT STEEFER
THAN 51 AND
LESS THAN IFT
DEEP
■ 2
11. 2
11 DeT
I I
Enclosure A
J104.2 Site plan requirements.
In addition to the provisions of Section 407106, a grading plan shall show the existing grade and finished grade in contour intervals of sufficient clarity to indicate the nature and extent of the work and show in detail that it complies with the requirements of this eCode. The plans shall show the existing grade on adjoining properties in sufficient detail to identify how grade changes will conform to the requirements of this ©Code.
Grading designation.J104.2.1
Grading in excess of 5,000 cubic yards (3,825 m3), or that is proposed to support any structure, shall be designated as "engineered grading." All engineered grading shall be performed in accordance with an approved grading plan and specifications prepared by a Civil Engineer, unless otherwise reguired by the Building Official.
Grading involving less than 5,000 cubic yards (3,825 m3), and that will not support any structure, shall be designated "regular grading" unless the permittee chooses to have the grading be designated as engineered grading, or the Building Official determines that, due to the existence of special conditions or unusual hazards, the grading should be designated as engineered grading.
J104.2.2 Regular grading requirements.
In addition to the provisions of Sections 106 and J 104.2, an application for a regular grading permit shall be accompanied by plans of sufficient clarity to indicate the nature and extent of the work. The plans shall give the location of the work, the name of the owner, and the name of the person who prepared the plan. The plan shall HOA.105556295.10 93
Enclosure A
include the following information:
1. General vicinity of the proposed site.
2. Limits and depths of cut and fill.
3. Location of any buildings or structures where work is to be performed, and the location of any buildings or structures within 15 feet (4.6 m) of the proposed grading.
4. Contours, flow areas, elevations, or slopes that define existing and proposed drainage patterns.
5. Storm water mitigation measures in accordance with the reguirements of Section 106.4,3 of this Code. See Section J110.8 for specific reguirements.
6. Location of existing and proposed utilities, drainage facilities, and recorded public and private easements and restricted use areas.
7. Location of all recorded floodways as established by Chapter 11.60 of Title 11 - Health and Safety - of the Los Angeles County Code8. Location of all Special Flood Hazard Areas as designated and defined in Title 44 of the Code of Federal Regulations.
J104.2.3 Engineered grading requirements.
In addition to the provisions of Sections 106 and J 104.2, an application for a permit for engineered grading shall be accompanied by plans and specifications and supporting data consisting of a geotechnical report and engineering geology report.
HOA.105556295.10 94
Enclosure A
Specifications shall contain information covering construction and material requirements. Plans shall be drawn to scale on paper and shall be of sufficient clarity to indicate the nature and extent of the work proposed and shall show in detail that the proposed work will conform to the provisions of this Code and all relevant laws. ordinances, rules, and regulations. The first sheet of the plans shall depict the location of the proposed work, the name and address of the owner, and the name and address of the person who prepared the plans.
The plans shall include or be accompanied by the following information:
1. General vicinity of the proposed site.
2. Property limits and accurate contours of existing ground and details of terrain and area drainage.
3. Limiting dimensions, elevations, or finish contours to be achieved by the grading, proposed drainage channels, and related construction4. Detailed plans of all surface and subsurface drainage devices, walls, cribbing, dams, and other protective devices to be constructed with, or as a part of, the proposed work. In addition, a map showing the drainage area and the estimated runoff of the area served by any drains.
5. Location of any existing or proposed buildings or structures located on the property on which the work is to be performed and the location of any buildings or structures on adjacent properties that are within 15 feet (4.6 m) of the property or that may be affected by the proposed grading operations.
HOA.105556295.10 95
Enclosure A
6. Recommendations in the geotechnical report and the engineering geology report shall be incorporated into the grading plans or specifications. When approved by the Building Official, specific recommendations contained in the soils engineering report and the engineering geology report, that are applicable to grading, may be included by reference.
7. The dates of the geotechnical and engineering geology reports together with the names, addresses, and phone numbers of the firms or individuals who prepared the reports.
8. A statement of the guantities of material to be excavated and/or filled.
Earthwork guantities shall include guantities for geotechnical and geological remediation. In addition, a statement of the guantities of material to be imported or exported from the site.
9. A statement of the estimated starting and completion dates for proposed work.
10. A statement signed by the owner, acknowledging that a Design Engineer, Field Engineer, Geotechnical Engineer, and Engineering Geologist, when appropriate, will be employed to perform the services reguired by this Code, when the Building Official reguires that such professional persons be so employed. These acknowledgments shall be on a form furnished by the Building Official11. Storm water mitigation measures are reguired to be shown on the grading plan in accordance with the reguirement of Section 106.4.3 of this Code. See Section J110.8 for specific requirements.
HOA.105556295.10 96
Enclosure A
12. A drainage plan for those portions of property proposed to be utilized as a building site (building pad), including elevations of floors with respect to finish site grade and locations of proposed stoops, slabs, and fences that may affect drainage.
13. Location and type of any proposed private sewage disposal system, including the location of the expansion area.
14. Location of existing and proposed utilities, drainage facilities, and recorded public and private easements and restricted use areas.
15. Location of all recorded floodways as established by Chapter 11.60 of Title 11 - Health and Safety - of the Los Angeles County Code.
16. Location of all Special Flood Hazard Areas as designated and defined in Title 44 of the Code of Federal Regulations.
J104.3 Geotech n i ca l and engineering geology re ports.
A geotechnical report prepared by registered design professionals shall be provided. The report shall contain not less than the following:
1. The nature and distribution of existing soils.
2. Conclusions and recommendations for grading procedures.
3. Soil design criteria for any structures or embankments reguired to accomplish the proposed grading.
4. Where necessary, slope stability studies, and recommendations and conclusions regarding site geology.
The geotechnical report reguired by Section J104.2.3 shall include data regarding the nature, distribution, and strength of existing soils, conclusions, and HOA.105556295.10 97
Enclosure A
recommendations for grading procedures and design criteria for corrective measures, including buttress fills, when necessary, and an opinion on the adequacy for the intended use of sites to be developed by the proposed grading as affected by geotechnical factors, including the stability of slopes. All reports shall conform with the reguirements of Section 111 and shall be subject to review by the Building Official.
Supplemental reports and data may be reguired as the Building Official may deem necessary. Recommendations included in the reports and approved by the Building Official shall be incorporated in the grading plan or specifications.
The engineering geology report reguired by Section J104.2.3 shall include an adeguate description of the geology of the site, conclusions, and recommendations regarding the effect of geologic conditions on the proposed development, and an opinion on the adeguacy for the intended use of sites to be developed by the proposed grading, as affected by geologic factors. The engineering geology report shall include a geologic map and cross sections utilizing the most recent grading plan as a base. All reports shall conform with the reguirements of Section 111 and shall be subject to review by the Building Official. Supplemental reports and data may be reguired as the Building Official may deem necessary. Recommendations included in the reports and approved by the Building Official shall be incorporated in the grading plan or specifications.
Exception: A geotechnical or engineering geology report is not reguired where the bBui Iding code oOfficial determines that the nature of the work applied for is such that a report is not necessary.
HOA.105556295.10 98
Enclosure A
Liquefaction study.J104.4
For sites with maximum considered earthquake spectral response accelerations at short periods (Ss) greater than 0.5g as determined by Chapter 11 of ASCE 7, a study of the liquefaction potential of the site shall be provided and the recommendations incorporated in the plans. A geotechnical investigation will be required when the proposed work is a "Project" as defined in Public Resources Code section 2693, and is located in an area designated as a "Seismic Hazard Zone" as defined in section 3722 of Title 14 of the Code of Regulations and on Seismic Hazard Zone Maps issued by the State Geologist under Public Resources Code section 2696.
Exception: A liguefaction study is not reguired where the bBuilding ©Official determines from established local data that the liquefaction potential is low.
SECTION 75. Section J105 is hereby amended to read as follows:
SECTION J105 INSPECTIONS
General.J105.1
Grading [inspections shall be governed by Section 110, Chapter 1, Division 11108 and as indicated herein. Grading operations for which a permit is reguired shall be subject to inspection by the Building Official. In addition, professional inspection of grading operations shall be performed by the Field Engineer, the Geotechnical Engineer, and the Engineering Geologist retained to provide such services in accordance with this Section for engineered grading and as reguired by the Building Official for regular grading.
HOA.105556295.10 99
Enclosure A
J105.2 Special and supplemental inspections.
The special inspection requirements of Section 1705.6 shall apply to work performed under a grading permit where required by the bBuilding oOfficial. In addition to the called inspections specified in Section J 105.7, the Building Official may make such other inspections as may be deemed necessary to determine that the work is being performed in conformance with the requirements of this Code. The Building Official may reguire investigations and reports by an approved soil testing agency, Geotechnical Engineer and/or Engineering Geologist, and Field Engineer. Inspection reports shall be provided when reguested in writing by the Building Official.
The Building Official may reguire continuous inspection of drainage devices by the Field Engineer in accordance with this Section when the Building Official determines that the drainage devices are necessary for the protection of the structures in accordance with Section 110.
J105.3 Field engineer.
The Field Engineer shall provide professional inspection of those parts of the grading project within such engineer's area of technical specialty, oversee and coordinate all field surveys, including setting grade stakes, and provide site inspections during grading operations to ensure the site is graded in accordance with the approved grading plan and the appropriate reguirements of this Code. During site grading, and at the completion of both rough grading and final grading, the Field Engineer shall submit statements and reports as reguired by Sections J105.11 and J105.12. If revised grading plans are reguired during the course of the work, they shall be prepared by a HOA.105556295.10 100
Enclosure A
Civil Engineer and approved by the Building OfficialGeotechnical engineer.J105.4 The Geotechnical Engineer shall provide professional inspection of those parts of the grading project within such engineer's area of technical specialty, which shall include observation during grading and testing for reguired compaction. The Geotechnical Engineer shall provide sufficient observation during the preparation of the natural ground and placement and compaction of the fill to verify that such work is being performed in accordance with the conditions of the approved plan and the appropriate reguirements of this Appendix, If conditions differing from the approved geotechnical engineering and engineering geology reports are encountered during grading, the Geotechnical Engineer shall provide revised recommendations to the permittee, the Building Official, and the Field Engineer.
J105.5 Engineering geologist.
The Engineering Geologist shall provide professional inspection of those parts of the grading project within such engineer's area of technical specialty, which shall include professional inspection of the bedrock excavation to determine if conditions encountered are in conformance with the approved report. If conditions differing from the approved engineering geology report are encountered, the Engineering Geologist shall provide revised recommendations to the Geotechnical Engineer.
HOA.105556295.10 101
Enclosure A
J105.6 Permittee.
The permittee shall be responsible for ensuring that the grading is performed in accordance with the approved plans and specifications and in conformance with the provisions of this Code. The permittee shall engage project consultants, if reguired under the provisions of this Code, to provide professional inspections on a timely basis.
The permittee shall act as a coordinator between the project consultants, the contractor, and the Building Official. In the event of changed conditions, the permittee shall be responsible for informing the Building Official of such change and shall provide revised plans for approval.
J105.7 Required inspections.
The permittee shall call for and schedule an inspection by the Building Official at the following various stages of work and shall obtain the approval of the Building Official prior to proceeding to the next stage of work:
Pre-grade - Before any construction or grading activities occur at the site. The permittee shall ensure that all project consultants are present at the pre-grade inspection.
Initial grade - When the site has been cleared of vegetation and unapproved fill, and has been scarified, benched, or otherwise prepared for fill. No fill shall have been placed prior to this inspection.
Rough grade - When approximate final elevations have been established, drainage terraces, swales, and other drainage devices necessary for the protection of the building sites from flooding have been installed, berms have been installed at the HOA.105556295.10 102
Enclosure A
top of the slopes, and the statements required by Section J105.12 have been received.
Final grade - When grading has been completed, all drainage devices necessary to drain the building pad have been installed, slope planting has been established, irrigation systems have been installed, and the as-built plans and reguired statements and reports have been submitted.
J105.8 Notification of noncompliance.
If, in the course of fulfilling their respective duties under this Appendix, the Field Engineer, the Geotechnical Engineer, or the Engineering Geologist determines that the work is not being done in conformance with this Appendix or the approved grading plans, the Field Engineer, the Geotechnical Engineer, or the Engineering Geologist shall immediately report, in writing, the discrepancies and the recommended corrective measures to the permittee and to the Building Official.
J105.9 Transfer of responsibility.
If the Field Engineer, the Geotechnical Engineer, or the Engineering Geologist of record is changed at any time after the grading plans reguired pursuant to Section J104.2.2 or J104.2.3 have been approved by the Building Official, the permittee shall immediately provide written notice of such change to the Building Official. The Building Official may stop the grading from commencing or continuing until the permittee has identified a replacement and the replacement has agreed in writing to assume responsibility for those parts of the grading project that are within the replacement's area of technical competence.
HOA.105556295.10 103
Enclosure A
J105.10 Non-inspected grading.
No person shall own, use, occupy, or maintain any non-inspected grading. For the purposes of this Code, non-inspected grading shall be defined as any grading for which a grading permit was first obtained, pursuant to Section J103, above, but which has progressed beyond any point requiring inspection and approval by the Building Official without such inspection and approval having been obtained.
Routine field inspections and reports.J105.11
Unless otherwise directed by the Building Official, the Field Engineer for all engineered grading projects shall prepare routine inspection reports and shall file these reports with the Building Official as follows:
1. Bi-weekly during all times when grading of 400 cubic yards or more per week is occurring on the site;
2. Monthly, at all other times; and
3. At any time when reguested in writing by the Building Official.
Such reports shall certify to the Building Official that the Field Engineer has inspected the grading site and related activities and has found them in compliance with the approved grading plans and specifications, this Code, all grading permit conditions, and all other applicable ordinances and requirements. The reports shall conform to a standard "Report of Grading Activities" form, which shall be provided by the Building Official.
HOA.105556295.10 104
Enclosure A
J105.12 Completion of work.
Upon completion of the rough grading work and at the final completion of the work, the following reports and drawings and supplements thereto are reguired for engineered grading or when professional inspection is otherwise reguired by the Building Official:
1. An "as-built" grading plan prepared by the Field Engineer retained to provide such services in accordance with Section J 105.3 showing all plan revisions as approved by the Building Official. This shall include original ground surface elevations, as-built ground surface elevations, lot drainage patterns, and the locations and elevations of surface drainage facilities and the outlets of subsurface drains. As-built locations, elevations, and details of subsurface drains shall be shown as reported by the Geotechnical Engineer.
The as-built grading plan shall be accompanied by a certification by the Field Engineer that to the best of his or her knowledge, the work within the Field Engineer's area of responsibility was done in accordance with the final approved grading plan.
2. A report prepared by the Geotechnical Engineer retained to provide such services in accordance with Section J105.4, including locations and elevations of field density tests, summaries of field and laboratory tests, other substantiating data, and comments on any changes made during grading and their effect on the recommendations made in the approved geotechnical engineering investigation report.
The report shall include a certification by the Geotechnical Engineer that, to the best of his or her knowledge, the work within the Geotechnical Engineer's area of responsibility HOA.105556295.10 105
Enclosure A
is in accordance with the approved geotechnical engineering report and applicable provisions of this Appendix. The report shall contain a finding regarding the safety of the completed grading and any proposed structures against hazard from landslide, settlement, or slippage.
3. A report prepared by the Engineering Geologist retained to provide such services in accordance with Section J105.5, including a final description of the geology of the site and any new information disclosed during the grading and the effect of such new information, if any, on the recommendations incorporated in the approved grading plan. The report shall contain a certification by the Engineering Geologist that, to the best of his or her knowledge, the work within the Engineering Geologist's area of responsibility is in accordance with the approved engineering geology report and applicable provisions of this Appendix. The report shall contain a finding regarding the safety of the completed grading and any proposed structures against hazard from landslide, settlement, or slippage. The report shall contain a final as-built geologic map and cross-sections depicting all the information collected prior to and during grading.
4. The grading contractor shall certify, on a form prescribed by the Building Official, that the grading conforms to said as-built plan and the approved specifications.
5. When a landscape permit is reguired by Section 490.1 of the California Department of Water Resources Model Water Efficient Landscape Ordinance, the Landscape Architect shall certify on a form prescribed by the Building Official that the landscaping conforms to approved landscape plans and specifications.
HOA.105556295.10 106
Enclosure A
J105.13 Notification of completion.
The permittee shall notify the Building Official when the grading operation is ready for final inspection. Final approval shall not be given until all work, including installation of all drainage facilities and their protective devices, and all erosion-control measures, have been completed in accordance with the final approved grading plan, and all reguired reports have been submitted and approvedJ105.14 Change of ownership.
Unless otherwise reguired by the Building Official, when a grading permit has been issued on a site and the owner sells the property prior to final grading approval, the new property owner shall be reguired to obtain a new grading permit.
SECTION 76. Section J106.1 is hereby amended to read as follows:
J106.1 Maximum cut slope.
The slope of cut surfaces shall be not steeper than is safe for the intended use, and shall be not more than one unit vertical in two units horizontal (50-percent slope) unless the owner or the owner's authorized agent furnishes a geotechnical or an engineering geology report, or both, justifying a steeper slope. The reports must contain a statement by the Geotechnical Engineer or Engineering Geologist that the site was investigated and an opinion that a steeper slope will be stable and will not create a hazard to public or private property, in conformance with the reguirements of Section 111. The Building Official may reguire the slope of the cut surfaces to be flatter in slope than 2 units horizontal to 1 unit vertical (50-percent slope) if the Building Official finds it necessary for the stability and safety of the slope.
HOA.105556295.10 107
Enclosure A
Exceptions:
1. A cut surface shall be permitted to be at a slope of 1.5 units horizontal to one unit vertical (67-percent slope) provided that all of the following are met:
1.1. It is not intended to support structures or surcharges.
4.2. It is adequately protected against erosion.
1.3. It is no more than 8 feet (2438 mm) in height.
4.4. It is approved by the bBuilding code oOfficial.
.5. Ground water is not encountered.
2. A cut surface in bedrock shall be permitted to be at a slope of 1 unit horizontal to 1 unit vertical (100 percent slope).
SECTION 77. Section J107 is hereby amended to read as follows:
SECTION J107 FILLS
J107.1 General.
Unless otherwise recommended in the geotechnical report, fills shall comply with the provisions of this election.
Exception: The Building Official may permit a deviation from the provisions of this Appendix for minor fills not intended to support structures, where no geotechnical report has been prepared.
HOA.105556295.10 108
Enclosure A
Surface Preparation.J107.2
Fill slopes shall not be constructed on natural slopes steeper than 2 units horizontal to 1 unit vertical (50 percent slope). The ground surface shall be prepared to receive fill by removing vegetation, topsoil, and other unsuitable materials (including any existing fill that does not meet the requirements of this Appendix), and scarifying the ground to provide a bond with the fill material.
Subdrains shall be provided under all fills placed in natural drainage courses and in other locations where seepage is evident, except where the Geotechnical Engineer or Engineering Geologist recommends otherwise. Such sub-drainage systems shall be of a material and design approved by the Geotechnical Engineer and acceptable to the Building Official. The Geotechnical Engineer shall provide continuous inspection during the process of subdrain installations. The location of the subdrains shall be shown on a plan prepared by the Geotechnical Engineer. Excavations for the subdrains shall be inspected by the Engineering Geologist when such subdrains are included in the recommendations of the Engineering Geologist.
J107.3 Benching.
Where existing grade is at a slope steeper than one unit vertical in five units horizontal (20-percent slope) and the depth of the fill exceeds 5 feet (1524 mm). benching shall be provided into sound bedrock or other competent material as determined by the Geotechnical Engineer in accordance with Figure J107.3, or as determined by the Geotechnical Engineer. When fill is to be placed over a cut, Aa key shall be provided that is not less than 10 feet (3048 mm) in width and 2 feet (610 mm) in HOA.105556295.10 109
Enclosure A
depth. The area beyond the toe of fill shall be sloped for sheet overflow or a paved drain shall be constructed thereon. The Geotechnical Engineer or Engineering Geologist, or both, shall inspect and approve the cut as being suitable for the foundation and placement of fill material before any fill material is placed on the excavation.
J107.4 Fill material.
Fill material shall not include organic, frozen, or other deleterious materials.
Rock or similar irreducible material greater than 12 inches (305 mm) in any dimension shall not be included in fills.
Exception: The Building Official may permit placement of larger rock when the Geotechnical Engineer properly devises and recommends a method of placement, and continuously inspects the placement and approves the fill stability. The following reguirements shall also apply:
1. Prior to issuance of the grading permit, potential rock disposal areas shall be delineated on the grading plan.
2. Rock sizes greater than 12 inches (0.3 m) in maximum dimension shall be 10 feet (3.0 m) or more below grade, measured vertically.
3. Rocks shall be placed so as to assure filling of all voids with well-graded soil.
HOA.105556295.10 110
Enclosure A
4. The reports submitted by the Geotechnical Engineer shall acknowledge the placement of the oversized material and whether the work was performed in accordance with the engineer's recommendations and the approved plans.
5. The location of oversized rock dispersal areas shall be shown on the asbuilt plan.
J107.5 Compaction.
All fill material shall be compacted to a minimum of 90 percent of maximum density as determined by ASTM D1557, Modified Proctor, in lifts not exceeding 12 inches (305 mm) in depth within 40 feet (12.2 m) below finished grade and 93 percent of maximum dry density deeper than 40 feet (12.2 m) below finished grade, unless a lower relative compaction (not less than 90 percent of maximum dry density) is justified by the Geotechnical Engineer and approved by the Building Official. Where ASTM D1557, Modified Proctor, is not applicable, a test acceptable to the Building Official shall be used.
Field density shall be determined by a method acceptable to the Building Official.
However, not less than ten percent of the reguired density tests, uniformly distributed, shall be obtained by the Sand Cone Method.
Fill slopes steeper than 2 units horizontal to 1 unit vertical (50-percent slope) shall be constructed by the placement of soil a sufficient distance beyond the proposed finish slope to allow compaction eguipment to operate at the outer surface limits of the final slope surface. The excess fill is to be removed prior to completion or rough grading. Other construction procedures may be utilized when it is first shown to the HOA.105556295.10 111
Enclosure A
satisfaction of the Building Official that the angle of slope, construction method, and other factors will comply with the intent of this Section.
J107.6 Maximum slope.
The slope of fill surfaces shall be not steeper than is safe for the intended use.
Fill slopes steeper than one unit vertical in two units horizontal (50-percent slope) shall be justified by a geotechnical reports or engineering dataconforming to the reguirements of Section 111, containing a statement by the Geotechnical Engineer that the site has been investigated and an opinion that a steeper fill slope will be stable and will not create a hazard to public or private property. Substantiating calculations and supporting data may be reguired where the Building Official determines that such information is necessary to verify the stability and safety of the proposed slope. The Building Official may reguire the fill slope to be constructed with a face flatter in slope than 2 units horizontal to 1 unit vertical (50-percent slope) if the Building Official finds it necessary for stability and safety of the slope.
Slopes to receive fill.J107.7
Where fill is to be placed above the top of an existing slope steeper than 3 units horizontal to 1 unit vertical (33-percent slope), the toe of the fill shall be set back from the top edge of the existing slope a minimum distance of 6 feet (1.8 m) measured horizontally or such other distance as may be specifically recommended by a Geotechnical Engineer or Engineering Geologist and approved by the Building Official.
HOA.105556295.10 112
Enclosure A
J107.8 Inspection of fill.
For engineered grading, the Geotechnical Engineer shall provide sufficient inspections during the preparation of the natural ground and the placement and compaction of the fill to ensure that the work is performed in accordance with the conditions of plan approval and the appropriate reguirements of this Appendix. In addition to the above, the Geotechnical Engineer shall provide continuous inspection during the entire fill placement and compaction of fills that will exceed a vertical height or depth of 30 feet (9.1 m) or result in a slope surface steeper than 2 units horizontal to 1 unit vertical (50-percent slope).
Testing of fills.J107.9
Sufficient tests of the fill soils shall be made to determine the density and to verify compliance of the soil properties with the design reguirements. This includes soil types and shear strengths in accordance with Section J111 Referenced Standards.
SECTION 78. Section J108 is hereby amended to read as follows:
SECTION J108 SETBACKS
J108.1 General.
Cut and fill slopes shall be set back from the property lines in accordance with this sSection. Setback dimensions shall be measured perpendicular to the property line and shall be as shown in Figure J108.1, unless substantiating data is submitted justifying reduced setbacks, and reduced setbacks are recommended in a geotechnical engineering and engineering geology report approved by the Building Official.
HOA.105556295.10 113
Enclosure A
J108.2 Top of slope
The setback at the top of a cut slope shall be not less than that shown in Figure J 108.1, or than is required to accommodate any required interceptor drains, whichever is greater. For graded slopes, the property line between adjacent lots shall be at the apex of the berm at the top of the slope. Property lines between adjacent lots shall not be located on a graded slope steeper than 5 units horizontal to 1 unit vertical (20-percent slope).
Toe of fill Sslope protection.J108.3
The setback from the toe of a fill slope shall not be less than that shown by Figure J 108.1. Where required to protect adjacent properties at the toe of a slope from adverse effects of the grading, additional protection, approved by the bBuilding ©Official, shall be included. Examples of such protection may include but shall not be limited to:
1. Setbacks greater than those required by Figure J108.1.
Provisions for retaining walls or similar construction.2.
3. Erosion protection of the fill slopes.
4. Provision for the control of surface waters.
J108.4 Alternate setbacks.
The Building Official may approve alternate setbacks if he or she determines that no hazard to life or property will be created or increased. The Building Official may reguire an investigation and recommendation by a gualified engineer or Engineering Geologist to justify any proposed alternate setback.
HOA.105556295.10 114
Enclosure A
SECTION 79. Figure J 108.1 is hereby amended to read as follows:
Pmparly
■
I ।
s
n
WsIIIIII
TrirSI; I fxt - J44,8 nrm.
SECTION 80. Section J109 is hereby amended to read as follows:
SECTION J109 DRAINAGE AND TERRACING
J109.1 General.
Unless otherwise recommended by a registered design professionallicensed Civil Engineer and approved by the Building Official, drainage facilities and terracing shall be provided in accordance with the reguirements of-this eSection J 109.2 for all cut and fill slopes 3 units horizontal to 1 unit vertical (33-percent slope) and steeper.
HOA.105556295.10 115
Top of
Slope
Toe of
Siope
Naluri ui
Finish Crede
Cut or Fill
Slupe
— Nallaail or
Fiish Grade
11/5 but 2 II minimiam
and need not exceed
10 f. maximum
i
i
Property
Lire
Hif bul 2 IL minmum
and notd nd exrred
20 It Miaximum
i
i
i
I
I
FIGURE J108.1
DRAINAGESETBACK DIMENSIONS
Interceptor Drain
(il requgd)
Enclosure A
EXCEPTION: Drainage facilities and terracing need not be provided where the ground slope is not steeper than one unit vertical in three units horizontal (33-percent lope).
For slopes flatter than 3 units horizontal to 1 unit vertical (33-percent slope) and steeper than 5 units horizontal to 1 unit vertical (20-percent slope), a paved swale or ditch shall be installed at 30-foot (9.1 m) vertical intervals to control surface drainage and debris. Swales shall be sized based on contributory area and have adequate capacity to convey intercepted waters to the point of disposal as defined in Section J109.5. Swales must be paved with reinforced concrete not less than 3 inches (0.08 m) in thickness, reinforced with 6-inch (0.2 m) by 6-inch (0.2 m) No. 10 by No. 10 welded wire fabric or equivalent reinforcing centered in the concrete slab or an equivalent approved by the Building Official. Swales must have a minimum flow line depth of 1 foot (0.3 m) and a minimum paved width of 18 inches (0.5 m). Swales shall have a minimum gradient of not less than 5 percent. There shall be no reduction in grade along the direction of flow unless the velocity of flow is such that slope debris will remain in suspension on the reduced grade.
J109.2 Drainage terraces.
Drainage Tterraces not less than 6 feet (1829 mm)8 feet (2.4 m) in width shall be established at not more than 30-foot (9144 mm) vertical intervals on all cut or fill slopes to control surface drainage and debris. Suitable acce
cleaning and maintenance.
Where more than two terraces are required, one terrace, located at HOA.105556295.10 116
ss shall be provided to allow for
Enclosure A
approximately mid-height, shall be at least 12 feet (3658 mm) in width.
Swales or ditches shall be provided on terraces. They shall have a minimum gradient of one unit vertical in 20 units horizontal (5-percent slope) and shall be paved with concrete not less than 3 inches (76 mm) in thickness, or with other materials suitable to the application. They shall have a depth not less than 12 inches (305 mm) and a width not less than 5 feet (1524 mm).
A single run of swale or ditch shall not collect runoff from a tributary area exceeding 13,500 square feet (1256 m2) (projected) without discharging into a down drainWhen only one terrace is required, it shall be at mid-height. For cut or fill slopes greater than 100 feet (30.5 m) and up to 120 feet (36.6 m) in vertical height, one terrace at approximately mid-height shall be 20 feet (6.1 m) in width. Terrace widths and spacing for cut and fill slopes greater than 120 feet (36.6 m) in height shall be designed by the Civil Engineer and approved by the Building Official. Suitable access shall be provided to permit proper cleaning and maintenance.
Drainage swales on terraces shall have a longitudinal grade of not less than 5 percent nor more than 12 percent and a minimum depth of 1 foot (0.3 m) at the flow line. There shall be no reduction in grade along the direction of flow unless the velocity of flow is such that slope debris will remain in suspension on the reduced gradeDrainage swales must be paved with reinforced concrete not less than 3 inches (0.8 m) in thickness, reinforced with 6-inch (0.2 m) by 6-inch (0.2 m) No. 10 by No. 10 welded wire fabric or eguivalent reinforcing centered in the concrete slab or an approved egual paving. Drainage swales shall have a minimum depth at the deepest point of 1 foot HOA.105556295.10 117
Enclosure A
(0.3 m) and a minimum paved width of 5 feet (1.5 m). Drainage swales on terraces shall be sized based on contributory area and have adequate capacity to convey intercepted waters to the point of disposal as defined in Section J 109.5. Downdrains or drainage outlets shall be provided at approximately 300 foot (91.4 m) intervals along the drainage terrace or at eguivalent locations. Down drains and drainage outlets shall be of approved materials and of adeguate capacity to convey the intercepted waters to the point of disposal as defined in Section J 109.5.
J109.3 Interceptor drains and overflow protection.
Berms, interceptor drains, swales, or other devices shall be installed along the top of cut slopes receiving drainage from a tributary width greater than 40 feet (12 192 mm), measured horizontallyto prevent surface waters from overflowing onto and damaging the face of a slope. Berms used for slope protection shall not be less than 12 inches (0.3 m) above the level of the pad and shall slope back at least 4 feet (1.2 m) from the top of the slope.
Interceptor drains shall be installed along the top of graded slopes greater than 5 feet in height receiving drainage from a slope with a tributary width greater than 30 feet (9.1 m), measured horizontally. They shall have a minimum depth of 1 foot (305 mm) and a minimum width of 3 feet (915 mm). The slope shall be approved by the bBuilding eOfficial, but shall be not less than one unit vertical in 50 units horizontal (2- percent slope). The drain shall be paved with concrete not less than 3 inches (76mm) in thickness, or by other materials suitable to the application, and reinforced as reguired for drainage terraces. Discharge from the drain shall be accomplished in a manner to HOA.105556295.10 118
Enclosure A
prevent erosion and shall be approved by the bBuilding ©Official.
J109.5 Disposal.
All drainage facilities shall be designed to convey waters to the nearestpracticable street, storm drain, or natural watercourse or drainage way approved by the Building Official or other appropriate governmental agency, provided that the discharge of such waters at that location will not create or increase a hazard to life or propertyErosion of the ground in the area of discharge shall be prevented by installation of nonerosive down drains or other devices. Desilting basins, filter barriers, or other methods, as approved by the Building Official, shall be utilized to remove sediments from surface waters before such waters are allowed to enter streets, storm drains, or natural watercourses. If the drainage device discharges onto natural ground, riprap or a similar energy dissipator may be required.
Building pads shall have a minimum drainage gradient of 2 percent toward an approved drainage facility or a public street unless otherwise directed by the Building Official. A lesser slope may be approved by the Building Official for sites graded in relatively flat terrain, or where special drainage provisions are made, when the Building Official finds such modification will not result in a hazard to life or property.
HOA.105556295.10 119
Enclosure A
SECTION 81. Section J110 is hereby amended to read as follows:
SECTION J110 SLOPE PLANTING AND EROSION CONTROL
J110.1 General.
The faces of cut and fill slopes shall be prepared and maintained to control erosion. This control shall be permitted to consist of effective planting, erosion control blankets, soil stabilizers, or other means as approved by the Building Official.
Exception: Erosion control measures need not be provided on cut slopes not subject to erosion due to the erosion-resistant character of the materials, as approved by the Project Consultants to the satisfaction of the Building Official.
J110.3 Planting,
The surface of all cut slopes more than 5 feet (1.5 m) in height and fill slopes more than 3 feet (0.9 m) in height shall be protected against damage from erosion by planting with grass or ground cover plants. Slopes exceeding 15 feet (4,6 m) in vertical height shall also be planted with shrubs, spaced at not to exceed 10 feet (3 m) on center, or trees, spaced at not to exceed 20 feet (6.1 m) on center; or a combination of shrubs and trees at an eguivalent spacing, in addition to grass or ground cover plants.
The plants selected and planting methods used shall be suitable for the soil and climatic conditions of the site.
Plant material shall be selected that will produce a coverage of permanent planting to effectively control erosion. Consideration shall be given to deep-rooted plant material needing limited watering, maintenance, high root to shoot ratio, wind HOA.105556295.10 120
Enclosure A
susceptibility, and fire-retardant characteristics. All plant materials must be approved by the Building Official.
Planting may be modified for the site if specific recommendations are provided by both the Geotechnical Engineer and a Landscape Architect. Specific recommendations must consider soils and climatic conditions, irrigation reguirements, planting methods, fire-retardant characteristics, water efficiency, maintenance needs, and other regulatory reguirements. Recommendations must include a finding that the alternative planting will provide a permanent and effective method of erosion control. Modifications to planting must be approved by the Building Official prior to installation.
J110.4 Irrigation.
Slopes reguired to be planted by Section J110.3 shall be provided with an approved system of irrigation that is designed to cover all portions of the slope.
Irrigation system plans shall be submitted to and approved by the Building Official prior to installation. A functional test of the system may be reguired.
For slopes less than 20 feet (6.1 m) in vertical height, hose bibs to permit hand watering will be acceptable if such hose bibs are installed at conveniently accessible locations where a hose no longer than 50 feet (15.2 m) is necessary for irrigation.
Irrigation reguirements may be modified for the site if specific recommendations are provided by both the Geotechnical Engineer and a Landscape Architect. Specific recommendations must consider soils and climatic conditions, plant types, planting methods, fire-retardant characteristics, water efficiency, maintenance needs, and other regulatory reguirements. Recommendations must include a finding that the alternative HOA.105556295.10 121
Enclosure A
irrigation method will sustain the proposed planting and provide a permanent and effective method of erosion control. Modifications for irrigation systems must be approved by the Building Official prior to installation.
J110.5 Plans and specifications.
Planting and irrigation plans shall be submitted for slopes that are reguired to be planted and irrigated pursuant to Sections J110.3 and J110.4. Except as otherwise reguired by the Building Official for minor grading, the plans for slopes 20 feet (6.1 m) or more in vertical height shall be prepared and signed by a Civil Engineer or Landscape Architect. If reguested by the Building Official, planting and irrigation details shall be included on the grading plan.
J110.6 Rodent control.
Fill slopes shall be protected from potential slope damage by a preventative program of rodent controlJ110.7 Release of security.
The planting and irrigation systems reguired by this Section shall be installed as soon as practical after rough grading. Prior to final approval of grading and before the release of the grading security, the planting shall be well established and growing on the slopes, and there shall be evidence of an effective rodent control program.
HOA.105556295.10 122
Enclosure A
J110.8 National Pollutant Discharge Elimination System
(NPDES) compliance.
J110.8.1 General.
All grading plans and permits and the owner of any property on which such grading is performed shall comply with the provisions of this Section for NPDES complianceAll best management practices shall be installed before grading begins or as instructed in writing by the Building Official for unpermitted grading as defined by Section J103.3. As grading progresses, all best management practices shall be updated as necessary to prevent erosion and to control construction-related pollutants from discharging from the site. All best management practices shall be maintained in good working order to the satisfaction of the Building Official until final grading approval has been granted by the Building Official and all permanent drainage and erosion control systems, if reguired, are in place. Failure to comply with this Section is subject to "Noncompliance Penalties" pursuant to Section J110.8.5. Payment of a penalty shall not relieve any persons from fully complying with the reguirements of this Code in the execution of the work.
J110.8.2 Storm Water Pollution Prevention Plan (SWPPP).
The Building Official may reguire a SWPPP. The SWPPP shall contain details of best management practices, including desilting basins or other temporary drainage or control measures, or both, as may be necessary to control construction-related pollutants that originate from the site as a result of construction-related activities. When HOA.105556295.10 123
Enclosure A
the Building Official requires a SWPPP, no grading permit shall be issued until the SWPPP has been submitted to and approved by the Building Official.
For unpermitted grading as defined by Section J 103.3, upon written reguest, a SWPPP in compliance with the provisions of this Section and Section 106.4.3 for NPDES compliance shall be submitted to the Building Official. Failure to comply with this Section is subject to "Noncompliance Penalties" per Section J110.8.5. Payment of a penalty shall not relieve any persons from fully complying with the reguirements of this Code in the execution of the work.
J110.8.3 Erosion and Sediment Control Plans (ESCP).
Where a grading permit is issued and the Building Official determines that the grading will not be completed prior to November 1, the owner of the site on which the grading is being performed shall, on or before October 1, file or cause to be filed with the Building Official an ESCP. The ESCP shall include specific best management practices to minimize the transport of sediment and protect public and private property from the effects of erosion, flooding, or the deposition of mud, debris, or constructionrelated pollutants. The best management practices shown on the ESCP shall be installed on or before October 15. The plans shall be revised annually or as reguired by the Building Official to reflect the current site conditions.
The ESCP shall be accompanied by an application for plan checking services and plan-checking fees in an amount determined by the Building Official, up to but not exceeding 10 percent of the original grading permit fee.
HOA.105556295.10 124
Enclosure A
Failure to comply with this Section is subject to "Noncompliance Penalties' pursuant to Section J110.8.5. Payment of a penalty shall not relieve any persons from fully complying with the requirements of this Code in the execution of the work.
J110.8.4 Storm Water Pollution Prevention Plan (SWPPP), effect of noncompliance.
Should the owner fail to submit the SWPPP or the ESCP as required by Section J110.8, or fail to install the best management practices, it shall be deemed that a default has occurred under the conditions of the grading permit security. The Building Official may thereafter enter the property for the purpose of installing, by County forces or by other means, the drainage, erosion control, and other devices shown on the approved plans, or if there are no approved plans, as the Building Official may deem necessary to protect adjoining property from the effects of erosion, flooding, or the deposition of mud, debris, or constructed-related pollutants.
The Building Official shall also have the authority to impose and collect the penalties imposed by Section J110.8.5. Payment of a penalty shall not relieve any persons from fully complying with the reguirements of this Code in the execution of the work.
J110.8.5 Noncompliance penalties.
The amount of the penalties shall be as follows:
1. If a SWPPP or an ESCP is not submitted as prescribed in Sections J110.8.2 and J110.8.3:
HOA.105556295.10 125
Enclosure A
Grading Permit Volume Penalty
1-10,000 cubic yards (1-7645.5 m3) $50.00 per day
10,001-100,000 cubic yards (7646.3-76455 m3) $250.00 per day More than 100,000 cubic yards (76455 m3) $500.00 per day
2. If the best management practices for storm water pollution prevention and wet weather erosion control, as approved by the Building Official, are not installed as prescribed in this Section J110.8:
Grading Permit Volume Penalty
1-10,000 cubic yards (1-7645.5 m3) $100.00 per day
10,001-100,000 cubic yards (7646.3-76455 m3) $250.00 per day More than 100,000 cubic yards (76455 m3) $500.00 per day NOTE: See Section 108 for inspection request requirements.
SECTION 82. Section J111 is hereby amended to read as follows:
SECTION J111 REFERENCED STANDARDS
J111.1 General. See Table J111.1 for standards that are referenced in various sections of this appendix. Standards are listed by the standard identification with the effective date, standard title, and the section or sections of this appendix that reference the standard.
TABLE J111.1 REFERENCED STANDARDS
ASTMD155712E1 J 107.5
ASCE/SEI 7-22 J104.4
HOA.105556295.10 126
Test Method for Laboratory Compaction
Characteristics of Soil Using Modified Effort
[56,000 ft-lb/ft3 {2,700kN-m/m3*_______________________ Minimum Design Loads and Associated Criteria for Buildings and Other Structures
Enclosure A
These regulations establish minimum standards and are not intended to prevent the use of alternate materials, methods, or means of conforming to such standards, provided such alternate has been approved by the Building Official■ The Building Official shall approve such an alternate provided they determine that the alternate is, for the purpose intended, at least the eguivalent of that prescribed in this Code in quality, strength, effectiveness, durability, and safety.
The Building Official shall reguire that sufficient evidence or proof be submitted to substantiate any claims regarding the alternate.
The standards listed below are recognized standards. Compliance with these recognized standards shall be prima facie evidence of compliance with the standards set forth in Sections J104 and J107.
J107.5
HOA.105556295.10 127
Laboratory Characteristics Compaction of Soil Using
Modified Effort
Water Content of Soil and Rock in Place by
Nuclear Methods
Density and Unit Weight of Soils In Place by the
Sand Cone Method
Density of Soils in Place by the Drive Cylinder
Method
Density of Soil and Soil Aggregate In Place by
Nuclear Methods
Density and Unit Weight of Soils In Place by the
Rubber Balloon Method
ASTM D3017
- Latest
Revision
J104.2.3,
J104.3 and
J107.9
J104.2.3
J 104.3 and
J107.9
J104.2.3
J104.3 and
J107.9
J104.2.3
J104.3 and
J107.9
J104.2.3,
J104.3 and
J107.9
ASTM D 1557
- Latest
Revision
ASTM D 1556
- Latest
Revision
ASTM D 2167
- Latest
Revision
ASTM D 2937
- Latest
Revision
ASTM D 2922
- Latest
Revision
Enclosure A
SECTION 83. Section Q101 .1 is hereby amended to read as follows:
Scope.Q101.1
This appendix shall be applicableapplies to emergency housing and emergency housing facilities, as defined in Section Q102, when and to the extent that the County of Los Angeles Board of Supervisors ("Board") finds, by motion, resolution, or otherwise, that this appendix applies to a specific state of emergency, local emergency, or declaration of shelter crisis.
SECTION 84. Section Q102.1 is hereby amended to read as follows:
Q102.1 General.
ENFORCING AGENCY. The Building Official as defined in Section 104.3 of this Code.
SECTION 85. Section Q103.1 is hereby amended to read as follows:
Q103.1 General.
Emergency sleeping cabins, emergency transportable housing units, membrane structures and tents constructed and/or assembled in accordance with this appendix, shall be occupied only during the duration of the declaration of state of emergency, local emergency, or shelter crisis.
HOA.105556295.10 128
Enclosure A
SECTION 86. Section Q103.4 is hereby amended to read as follows:
Q103.4 Fire and life safety requirements not addressed in this appendix.
If not otherwise addressed in this appendix, fire and life safety measures, including, but not limited to, means of egress, fire separation, fire sprinklers, smoke alarms, and carbon monoxide alarms, shall be determined and enforced by the enforcing agency in consultation with the County Departments of Public Health, Fire, and other pertinent County departments, as applicable.
SECTION 87. Section Q106.1 is hereby amended to read as follows:
General.Q106.1
Tents and membrane structures shall be provided with means of ventilation (natural and/or mechanical) allowing for adequate air replacement, as determined by the enforcing agency.
SECTION 88. Section Q107.1 is hereby amended to read as follows:
Q107.1 General.
Emergency housing shall comply with the applicable requirements in Chapter 11B and/or the US Access Board Final Guidelines for Emergency Transportable Housing as determined by the enforcing agency.
HOA.105556295.10 129
Enclosure A
SECTION 89. Section Q110.1.1 is hereby added to read as follows:
Q110.1.1 Backflow prevention.
Backflow prevention devices shall be provided in accordance with Section 602.3 of the Plumbing Code.
SECTION 90. Section Q110.1 .2 is hereby added to read as follows:
Q110.1.2 Drinking fountains.
An adequate number of drinking fountains, bottle fillers, or drinking facilities shall be provided as determined by the enforcing agency.
SECTION 91 Section Q110.3 is hereby amended to read as follows:
Toilet and bathing facilities.Q110.3
The maximum travel distance from any sleeping and/or living area to the toilet facility shall not exceed 300 feet (91.4 m) or as determined by the enforcing agency.
SECTION 92. The provisions of this ordinance contain various changes, modifications, and additions to the 2025 California Building Code. Some of those changes are administrative in nature in that they do not constitute changes or modifications to requirements contained in the building standards published in the California Building Standards Code.
Pursuant to California Health and Safety Code sections 17958.5, 17958.7, and 18941.5, the Board of Supervisors hereby expressly finds that all of the changes and modifications to requirements contained in the building standards published in the California Building Standards Code that are contained in this ordinance are reasonably HOA.105556295.10 130
Enclosure A
necessary because of local climatic, geological, or topographical conditions in the County of Los Angeles due to the potential for seismic activity in the region, topographical conditions that contribute to the spread of wild fires, and climatic conditions that impact air quality and increase the risk of wild fires. In addition, the Board of Supervisors expressly finds that these changes and modifications are substantially equivalent to changes or modifications previously filed with the California Building Standards Commission by the County of Los Angeles and which were in effect as of September 30, 2025, or relate to home hardening. Without limiting the foregoing, the County makes additional findings herein:
BUILDING CODE AMENDMENTS
Condition Explanation of Amendment
Administrative
Climatic701A.1
701 A.2
701A.3 Climatic
701A.5
Climatic
HOA.105556295.10 131
Code
Section
113.5,
113.5.1,
113.5.2
701 A.6
701 A.7
This is an administrative amendment to clarify that
structures meeting the conditions specified and
affected by the 2025 Eaton and Palisades fire are not
required under the Alquist-Priolo Act to conduct an
active fault study._____________________________
Clarifies the application of Chapter 5 of the California Wildland Interface Code to harden additions,
alterations, and/or relocated buildings. Many areas of
the County have been designated as Fire Hazard
Severity Zones due to the increased risk of fire
caused by low humidity, strong winds, and dry
vegetation. Additions, alterations, and/or relocated
buildings have the same fire risk as new buildings.
Disallows the use of wood-shingle/wood-shake roofs
due to the increased risk of fire in the County caused
by low humidity, strong winds, and dry vegetation in
high fire severity zones in order to further harden
residential buildings against fire risk.______________
Disallows the use of Class B wood-shingle/woodshake roofs due to the increased risk of fire in the County caused by low humidity, strong winds, and dry
Enclosure A
Condition Explanation of Amendment
1031.2.1 Geological
Geological
Geological
1613.8.2 Geological
HOA.105556295.10 132
Code
Section
Table
1507.3.7
1613.8
and
1613.8.1
vegetation in high fire severity zones in order to
further harden residential buildings against fire risk.
The greater Los Angeles/Long Beach region is a
densely populated area having buildings constructed
over and near a vast array of earthquake fault
systems capable of producing major earthquakes,
similar to or exceeding the geologic activities
occurring during the 1994 Northridge Earthquake.
The proposed amendment is intended to prevent
occupants from being trapped in a building and to
allow rescue workers to easily enter after an
earthquake._________________________________
Table amended to require proper anchorage for clay
or concrete tiles from sliding or rotating due to the
increased risk of significant earthquakes in the
County. This amendment incorporates the design
provisions developed based on detailed study of the
1994 Northridge and the 1971 Sylmar earthquakes.
Observed damages to one- and two-family dwellings
of light frame construction after the Northridge
Earthquake may have been partially attributed to
vertical irregularities common to this type of
occupancy and construction. In an effort to improve
quality of construction and incorporate lesson learned
from studies after the Northridge Earthquake, the
proposed modification to ASCE 7-22, Section
12.2.3.1, Exception 3, by limiting the number of
stories and height of the structure to two stories will significantly minimize the impact of vertical
irregularities and concentration of inelastic behavior
from mixed structural systems. This proposed
amendment is a continuation of an amendment
adopted during previous code adoption cycles, and is
necessary due to the increased risk of significant
earthquakes in the County._____________________
A joint Structural Engineers Association of Southern
California (SEAOSC), Los Angeles County and
Los Angeles City Task Force investigated the
performance of concrete and masonry construction
with flexible wood diaphragm failures after the
Northridge earthquake. It was concluded at that time
Enclosure A
Condition Explanation of Amendment
1613.8.3 Geological
1613.9
HOA.105556295.10 133
Code
Section
Geological
Topographical
that continuous ties are needed at specified spacing
to control cross grain tension in the interior of the
diaphragm. Additionally, there was a need to limit
subdiaphragm allowable shear loads to control
combined orthogonal stresses within the diaphragm.
Recognizing the importance and need to continue the
recommendation made by the task force while taking
into consideration the improved performances and
standards for diaphragm construction today, this
proposal increases the continuous tie spacing limit to
40 ft in lieu of 25 ft and to use 75% of the allowable
code diaphragm shear to determine the depth of the
sub-diaphragm in lieu of the 300 plf and is deemed
appropriate and acceptable. Due to the frequency of
this type of failure during the past significant
earthquakes, various jurisdictions within the Los
Angeles region have taken this additional step to
prevent roof or floor diaphragms from pulling away
from concrete or masonry walls. This proposed
amendment is a continuation of an amendment
adopted during previous code adoption cycles._____
The inclusion of the importance factor in the
referenced Section equation has the unintended
consequence of reducing the minimum seismic
separation distance for important facilities such as
hospitals, schools, police, and fire stations from
adjoining structures. The proposal to omit the
importance factor from the referenced equation in
Section 12.8.6 will ensure that a safe seismic
separation distance is provided. This proposed
amendment is a continuation of an amendment
adopted during previous code adoption cycles._____
Section is added to improve seismic safety of
buildings constructed on or into hillsides. Due to the
local topographical and geological conditions of the
sites within the greater Los Angeles/Long Beach
region and their probabilities for earthquakes, this
technical amendment is required to address and
clarify special needs for buildings constructed on
hillside locations. A SEAOSC and Los Angeles City
Joint Task Force investigated the performance of
Enclosure A
Condition Explanation of Amendment
1613.10 Geological
1704.6
HOA.105556295.10 134
Code
Section
Geological
Administrative
hillside building failures after the Northridge
earthquake. Numerous hillside failures resulted in
loss of life and millions of dollars in damage. These
criteria were developed to minimize the damage to
these structures and have been in use by both the
City and County of Los Angeles for several years with
much success. This amendment is a continuation of
an amendment adopted during previous code
adoption cycles.______________________________
The greater Los Angeles/Long Beach region is a
densely populated area having buildings constructed
over and near a vast array of fault systems capable of
producing major earthquakes, similar to or exceeding
the geologic activities occurring during the 1994
Northridge Earthquake. The proposed modification
requiring safe design and construction requirements
for ceiling suspension systems to resist seismic loads
is intended to minimize the amount of damage within
a building and therefore needs to be incorporated into
the code to assure that new buildings and additions to
existing buildings are designed and constructed in
accordance with the scope and objectives of the
California Building Code._______________________
The language in section 1704.6 of the California
Building Code permits the owner to employ any
registered design professional to perform structural
observations with minimum guidelines. However, it is
important that the registered design professional
responsible for the structural design has thorough
knowledge of the building he/she designed. By
requiring the registered design professional
responsible for the structural design, or their
designee, who was involved with the design to
observe the construction, the quality of the
observation for major structural elements and
connections that affect the vertical and lateral load
resisting systems of the structure will be greatly
increased. Additional requirements are provided to
help clarify the role and duties of the structural
observer and the method of reporting and correcting
observed deficiencies to the Building Official. This
Enclosure A
Condition Explanation of Amendment
1704.6.1 Geological
1705.3 Geological
1705.13 Geological
HOA.105556295.10 135
Code
Section
amendment is a continuation of an amendment
adopted during previous code adoption cycles, and is
necessary due to the increased risk of significant
earthquakes in the County._____________________
With the higher seismic demand placed on buildings
and structures in this region, the language in section
1704.6.1, Item 3, of the California Building Code
would permit many low-rise buildings and structures
with complex structural elements to be constructed
without the benefit of a structural observation. By
requiring a registered design professional to observe
the construction, the quality of the observation for
major structural elements and connections that affect
the vertical and lateral load resisting systems of the
structure will be greatly increased. An exception is
provided to permit simple structures and buildings to
be excluded. This amendment is a continuation of an
amendment adopted during previous code adoption
cycles, and is necessary due to the increased risk of
significant earthquakes in the County._____________
Results from studies after the 1994 Northridge
Earthquake indicated that a significant portion of the
damage was attributable to lack of quality control
during construction resulting in poor performance of
the building or structure. Therefore, the amendment
restricts the exceptions to the requirement for special inspection. This amendment is a continuation of an
amendment adopted during previous code adoption
cycles, and is necessary due to the increased risk of
significant earthquakes in the County._____________
In Southern California, very few detached one- or twofamily dwellings not exceeding two stories above grade plane are built as "box-type" structures
specially for those in hillside areas and near the
oceanfront. Many with steel moment frames or
braced frames, and/or cantilevered columns, can still
be shown as "regular" structures by calculations.
With the higher seismic demand placed on buildings
and structures in this region, the language in
section 1705.13, Item 3, of the California Building
Code would permit many detached one- or two-family
Enclosure A
Condition Explanation of Amendment
1807.1.4
1807.1.6 Geological
HOA.105556295.10 136
Code
Section
Climatic
Geological
dwellings not exceeding two stories above grade
plane with complex structural elements to be
constructed without the benefit of special inspections.
By requiring special inspections, the quality of major
structural elements and connections that affect the
vertical and lateral load resisting systems of the
structure will be greatly increased. The exception
should only be allowed for detached one- or twofamily dwellings not exceeding two stories above grade plane assigned to Seismic Design Categories
A, B,and C.__________________________________
No substantiating data has been provided to show
that a wood foundation is effective in supporting
buildings and structures during a seismic event while
being subject to deterioration caused by the combined
detrimental effect of constant moisture in the soil and wood-destroying organisms. Wood retaining walls,
when they are not properly treated and protected
against deterioration, have performed very poorly and
have led to slope failures. Most contractors are
typically accustomed to construction in dry and
temperate weather in the Southern California region
and are not generally familiar with the necessary
precautions and treatment of wood that makes it
suitable for both seismic events and wet applications.
The proposed amendment takes the necessary
precautionary steps to reduce or eliminate potential
problems that may result by using wood foundations
that experience relatively rapid decay due to the fact
that the region does not experience temperatures cold
enough to destroy or retard the growth and
proliferation of wood-destroying organisms. This
amendment is a continuation of an amendment
adopted during previous code adoption cycles, and is
necessary due to the local climate and the increased
risk of significant earthquakes in the County._______
With the higher seismic demand placed on buildings
and structures in this region, it is necessary to take
precautionary steps to reduce or eliminate potential
problems that may result by following prescriptive
design provisions that do not take into consideration
Enclosure A
Condition Explanation of Amendment
1807.2
1807.3.1
HOA.105556295.10 137
Climatic,
Geological
Code
Section
Climatic,
Geological
the surrounding environment. Plain concrete
performs poorly in withstanding the cyclic forces
resulting from seismic events. In addition, no
substantiating data has been provided to show that
under-reinforced foundation walls are effective in
resisting seismic loads, and may potentially lead to a
higher risk of failure. It is important that the benefit and expertise of a registered design professional be
obtained to properly analyze the structure and take
these issues into consideration. This amendment is a
continuation of an amendment adopted during
previous code adoption cycles.__________________
No substantiating data has been provided to show
that wood foundation systems are effective in
supporting buildings and structures during a seismic
event while being subject to deterioration caused by
the combined detrimental effects of constant moisture
in the soil and wood-destroying organisms. Wood
foundation systems not properly treated and protected
against deterioration have performed very poorly and
have led to slope failures. Most contractors are
typically accustomed to construction in dry and
temperate weather in the Southern California region
and are not generally familiar with the necessary
precautions and treatment of wood that makes it
suitable for both seismic events and wet applications.
The proposed amendment takes the precautionary
steps to reduce or eliminate potential problems that
may result in using wood foundation systems that
experience relatively rapid decay due to the fact that
the region does not experience temperatures cold
enough to destroy or retard the growth and
proliferation of wood-destroying organisms. This
proposed amendment is a continuation of an
amendment adopted during previous code adoption
cycles._____________________________________
No substantiating data has been provided to show
that wood foundation systems are effective in
supporting buildings and structures during a seismic
event while being subject to deterioration caused by
the combined detrimental effects of constant moisture
Enclosure A
Condition Explanation of Amendment
Geological
Geological
HOA.105556295.10 138
Code
Section
1809.3 and
Figure 1809.3
1809.7 and
Table 1809.7
in the soil and wood-destroying organisms. Wood
foundation systems not properly treated and protected
against deterioration have performed very poorly and
have led to slope failures. Most contractors are
typically accustomed to construction in dry and
temperate weather in the Southern California region
and are not generally familiar with the necessary
precautions and treatment of wood that makes it
suitable for both seismic events and wet applications.
The proposed amendment takes the precautionary
steps to reduce or eliminate potential problems that
may result in using wood foundation systems that
experience relatively rapid decay due to the fact that
the region does not experience temperatures cold
enough to destroy or retard the growth and
proliferation of wood-destroying organisms. This
proposed amendment is a continuation of an
amendment adopted during previous code adoption
cycles._____________________________________
With the higher seismic demand placed on buildings
and structures in this region, it is necessary to take
precautionary steps to reduce or eliminate potential
problems that may result for under-reinforced footings
located on sloped surfaces. Requiring minimum
reinforcement for stepped footings is intended to
address the problem of poor performance of plain or
under-reinforced footings during a seismic event.
This amendment is a continuation of an amendment
adopted during previous code adoption cycles._____
No substantiating data has been provided to show
that under-reinforced footings are effective in resisting seismic loads, and therefore they may potentially lead
to a higher risk of failure. This amendment requires
minimum reinforcement in continuous footings to
address the problem of poor performance of plain or
under-reinforced footings during a seismic event.
With the higher seismic demand placed on buildings
and structures in this region, it is necessary to take
precautionary steps to reduce or eliminate potential
problems that may result by following prescriptive
design provisions for footings that do not take into
Enclosure A
Condition Explanation of Amendment
1809.12
1810.3.2.4
HOA.105556295.10 139
Code
Section
Climatic
Geological
Climatic
Geological
consideration the surrounding environment. It is
important that the benefit and expertise of a
registered design professional be obtained to properly
analyze the structure and take these factors into
consideration. This amendment reflects the
recommendations by the SEAOSC and the Los
Angeles City Joint Task Force, which investigated the
performance deficiencies observed in the 1994
Northridge Earthquake. This amendment is a
continuation of an amendment adopted during
previous code adoption cycles.__________________
No substantiating data has been provided to show
that timber footings are effective in supporting
buildings and structures during a seismic event while
being subject to deterioration caused by the combined
detrimental effects of constant moisture in the soil and wood-destroying organisms. Timber footings, when
they are not properly treated and protected against
deterioration, have performed very poorly. Most
contractors are typically accustomed to construction
in dry and temperate weather in the Southern
California region and are not generally familiar with
the necessary precautions and treatment of wood that
makes it suitable for both seismic events and wet
applications. The proposed amendment takes the
necessary precautionary steps to reduce or eliminate
potential problems, which may result by using timber
footings that experience relatively rapid decay due to
the fact that the region does not experience
temperatures cold enough to destroy or retard the
growth and proliferation of wood-destroying
organisms. This amendment is a continuation of an
amendment adopted during previous code adoption
cycles, and is necessary due to the local climate and
the increased risk of significant earthquakes in the
County.____________________________________
No substantiating data has been provided to show
that timber footings are effective in supporting
buildings and structures during a seismic event while
being subject to deterioration caused by the combined
detrimental effects of constant moisture in the soil and
Enclosure A
Condition Explanation of Amendment
1905.1 Geological
HOA.105556295.10 140
Code
Section
wood-destroying organisms. Timber footings, when
they are not properly treated and protected against
deterioration, have performed very poorly. Most
contractors are typically accustomed to construction
in dry and temperate weather in the Southern
California region and are not generally familiar with
the necessary precautions and treatment of wood that
makes it suitable for both seismic events and wet
applications. The proposed amendment takes the
necessary precautionary steps to reduce or eliminate
potential problems that may result by using timber
footings that experience relatively rapid decay due to
the fact that the region does not experience
temperatures cold enough to destroy or retard the
growth and proliferation of wood-destroying
organisms. This amendment is a continuation of an
amendment adopted during previous code adoption
cycles, and is necessary due to the local climate and
the increased risk of significant earthquakes in the
County.____________________________________
This amendment is intended to carry over critical
provisions for the design of concrete columns in
moment frames from the legacy 1997 Uniform
Building Code. Increased confinement is critical to
the integrity of such columns and these modifications
ensure that it is provided when certain thresholds are
exceeded. In addition, this amendment carries over
from the legacy 1997 Uniform Building Code a critical
provision for the design of concrete shear walls. It
essentially limits the use of very highly gravity-loaded walls in being included in the seismic load resisting
system, since their failure could have catastrophic
effect on the building. Furthermore, this amendment
was incorporated in the code based on observations
from the 1994 Northridge Earthquake. Rebar placed
in very thin concrete topping slabs have been
observed in some instances to have popped out of
the slab due to insufficient concrete coverage. This
modification ensures that critical boundary and
collector rebars are placed in sufficiently thick topping slab to prevent buckling of such reinforcements. This
Enclosure A
Condition Explanation of Amendment
1905.6.2 Geological
Geological
HOA.105556295.10 141
Code
Section
1905.8
through
1905.10
proposed amendment is a continuation of an
amendment adopted during previous code adoption
cycles, and is necessary due to the increased risk of
significant earthquakes in the County.____________
This amendment requires minimum reinforcement in
continuous footings to address the problem of poor
performance of plain or under-reinforced footings
during a seismic event. This amendment reflects the
recommendations by the SEAOSC and the
Los Angeles City Joint Task Force, which investigated
the poor performance observed in the 1994
Northridge Earthquake. This amendment is a
continuation of an amendment adopted during
previous code adoption cycles, and is necessary due
to the increased risk of significant earthquakes in the County.____________________________________
These amendments are intended to carry over critical
provisions for the design of concrete columns in
moment frames from the Uniform Building Code
(UBC). Increased confinement is critical to the
integrity of such columns and these modifications
ensure that it is provided when certain thresholds are
exceeded. In addition, this amendment carries over
from the UBC a critical provision for the design of
concrete shear walls. It essentially limits the use of
very highly gravity-loaded walls from being included in the seismic load resisting system, since their failure
could have a catastrophic effect on the building.
Furthermore, this amendment was incorporated into
this Code based on observations from the 1994
Northridge Earthquake. Rebar placed in very thin
concrete topping slabs has been observed in some
instances to have popped out of the slab due to
insufficient concrete coverage. This modification
ensures that critical boundary and collector rebars are placed in sufficiently thick slabs to prevent buckling of such reinforcements. This amendment is a
continuation of an amendment adopted during
previous code adoption cycles, and is necessary due
to the increased risk of significant earthquakes in the County.
Enclosure A
Condition Explanation of Amendment
Geological
2304.10.3.1 Geological
HOA.105556295.10 142
Code
Section
2304.10.2
and Table
2304.10.2
Due to the high geologic activities in the Southern
California area and the expected higher level of
performance on buildings and structures, this
proposed local amendment limits the use of staple
fasteners in resisting or transferring seismic forces. In September 2007, limited cyclic testing data was
provided to the ICC, Los Angeles Chapter Structural
Code Committee, showing that stapled wood
structural shear panels do not exhibit the same
behavior as nailed wood structural shear panels. The
test results of stapled wood structural shear panels
demonstrated much lower strength and drift than
nailed wood structural shear panel test results.
Therefore, the use of staples as fasteners to resist or transfer seismic forces shall not be permitted without
being substantiated by cyclic testing. This
amendment is a continuation of a similar amendment
adopted during previous code adoption cycles, and is
necessary due to the increased risk of significant
earthquakes in the County._____________________
The overdriving of nails into the structural wood
panels still remains a concern when pneumatic nail
guns are used for wood structural panel shear wall
nailing. Box nails were observed to cause massive
and multiple failures of the typical 3/8-inch thick
plywood during the 1994 Northridge Earthquake. The
use of clipped head nails continues to be restricted
from use in wood structural panel shear walls where
the minimum nail head size must be maintained in
order to minimize nails from pulling through sheathing
materials. Clipped or mechanically driven nails used
in wood structural panel shear wall construction were
found to perform much worse in previous wood
structural panel shear wall testing done at the
University of California Irvine. The existing test
results indicated that, under cyclic loading, the wood
structural panel shear walls were less energy
absorbent and less ductile. The panels reached
ultimate load capacity and failed at substantially less lateral deflection than those using same-size handdriven nails. This amendment reflects the
Enclosure A
Condition Explanation of Amendment
2304.12.2.8
2305.4 Geological
HOA.105556295.10 143
Code
Section
Climatic
Geological
recommendations by the SEAOSC and the Los
Angeles City Joint Task Force, which investigated the
poor performance observed in the 1994 Northridge
Earthquake. This amendment is a continuation of an
amendment adopted during previous code adoption
cycles, and is necessary due to the increased risk of
significant earthquakes in the County.____________
No substantiating data has been provided to show
that wood used in retaining or crib walls is effective in supporting buildings and structures during a seismic
event while being subject to deterioration caused by
the combined detrimental effect of constant moisture
in the soil and wood-destroying organisms. Wood
used in retaining or crib walls, when it is not properly treated and protected against deterioration, has
performed very poorly. Most contractors are typically
accustomed to construction in dry and temperate
weather in the Southern California region and are not
generally familiar with the necessary precautions and
treatment of wood that makes it suitable for both
seismic events and wet applications. The proposed
amendment takes the necessary precautionary steps
to reduce or eliminate potential problems that may
result by using wood in retaining or crib walls, which
experience relatively rapid decay due to the fact that
the region does not experience temperatures cold
enough to destroy or retard the growth and
proliferation of wood-destroying organisms. This
amendment is a continuation of an amendment
adopted during previous code adoption cycles, and is
necessary due to the local climate and the increased
risk of significant earthquakes in the County._______
Many of the hold-down connectors currently in use do
not have any acceptance report based on dynamic
testing protocols. This amendment continues to limit
the allowable capacity to 75% of the acceptance
report value to provide an additional factor of safety
for statically tested anchorage devices. Cyclic forces
imparted on buildings and structures by seismic
activity cause more damage than equivalent forces
that are applied in a static manner. Steel plate
Enclosure A
Condition Explanation of Amendment
Geological
HOA.105556295.10 144
Code
Section
washers will reduce the additional damage that can
result when hold-down connectors are fastened to
wood framing members. This amendment reflects the
recommendations by the SEAOSC and the
Los Angeles City Joint Task Force, which investigated
the poor performance observed in the 1994
Northridge Earthquake. This amendment is a
continuation of an amendment adopted during
previous code adoption cycles, and is necessary due
to the increased risk of significant earthquakes in the County.____________________________________
The SEAOSC and the Los Angeles City Joint Task
Force that investigated damage to buildings and
structures during the 1994 Northridge Earthquake
recommended reducing allowable shear values in
wood structural panel shear walls or diaphragms that
were not substantiated by cyclic testing. That
recommendation was consistent with a report to the
Governor from the Seismic Safety Commission of the
State of California recommending that code
requirements be "more thoroughly substantiated with
testing." The allowable shear values for wood
structural panel shear walls or diaphragms fastened
with staples are based on monotonic testing and do
not take into consideration that earthquake forces
load shear wall or diaphragm in a repeating and fully
reversible manner. In September 2007, limited cyclic
testing was conducted by a private engineering firm to
determine if wood structural panels fastened with
staples would exhibit the same behavior as wood
structural panels fastened with common nails. The
test result revealed that wood structural panels
fastened with staples demonstrated much lower
strength and stiffness than wood structural panels
fastened with common nails. It was recommended
that the use of staples as fasteners for wood
structural panel shear walls or diaphragms not be
permitted to resist seismic forces in structures
assigned to Seismic Design Categories D, E, and F
unless it can be substantiated by cyclic testing.
Furthermore, the cities and unincorporated areas
2306.2
2306.3
2307.2
2308.10.5.1
2308.10.5.2
Figure
2308.10.5.1
and Figure
2308.10.5.2
Enclosure A
Condition Explanation of Amendment
2308.10.8.1 Geological
Geological
HOA.105556295.10 145
Code
Section
Table
2308.10.1
within the greater Los Angeles/Long Beach region
have taken extra measures to maintain the structural
integrity of the framing of shear walls and diaphragms
designed for high levels of seismic forces by requiring wood sheathing be applied directly over the framing
members and prohibiting the use of panels placed
over gypsum sheathing. This amendment is intended
to prevent the undesirable performance of nails when
gypsum board softens due to cyclic earthquake
displacements and the nail ultimately does not have
any engagement in a solid material within the
thickness of the gypsum board. This amendment
continues the previous amendment adopted during
the 2007 code adoption cycle.___________________
With the higher seismic demand placed on buildings
and structures in this region, interior walls can easily be called upon to resist over half of the seismic
loading imposed on simple buildings or structures.
Without a continuous foundation to support the
braced wall line, seismic loads would be transferred
through other elements such as non-structural
concrete slab floors, wood floors, etc. The purpose of
this amendment is to limit the use of the exception to
structures assigned to Seismic Design Category A, B,
or C where lower seismic demands are expected.
Requiring interior braced walls be supported by
continuous foundations is intended to reduce or
eliminate the poor performance of buildings or
structures. This amendment is a continuation of an
amendment adopted during previous code adoption
cycles, and is necessary due to the increased risk of
significant earthquakes in the County.____________
This amendment specifies minimum sheathing
thickness and nail size and spacing so as to provide a
uniform standard of construction for designers and
buildings to follow. This is intended to improve the
performance level of buildings and structures that are
subject to the higher seismic demands placed on
buildings or structure in this region. This proposed
amendment reflects the recommendations by the
SEAOSC and the Los Angeles City Joint Task Force,
Enclosure A
Condition Explanation of Amendment
2308.10.9 Geological
3114;
HOA.105556295.10 146
Climatic,
Geologic
Code
Section
which investigated the performance deficiencies
observed in the 1994 Northridge Earthquake. This
amendment is a continuation of an amendment
adopted during previous code adoption cycles, and is
necessary due to the increased risk of significant
earthquakes in the County._____________________
Due to the high geologic activities in the Southern
California area and the required higher level of
performance of buildings and structures, this
amendment limits the use of staple fasteners in
resisting or transferring seismic forces. In September
2007, limited cyclic testing data was provided to the
ICC, Los Angeles Chapter Structural Code
Committee, showing that stapled wood structural
shear panels do not exhibit the same behavior as
nailed wood structural shear panels. The test results
of stapled wood structural shear panels demonstrated
much lower strength and drift than nailed wood
structural shear panel test results. Therefore, the use of staples as fasteners to resist or transfer seismic
forces shall not be permitted without being
substantiated by cyclic testing. This amendment is a
continuation of a similar amendment adopted during
previous code adoption cycles.__________________
The greater Los Angeles/Long Beach region is
situated over a vast array of earthquake fault systems
capable of producing major earthquakes, similar to or
exceeding the geologic activities occurring during the
1994 Northridge Earthquake. The region is further
impacted by construction of buildings and structures
utilizing traditional construction materials that impact the amount of energy, air quality, greenhouse gas
emission and construction waste in the area. The
proposed amendment addresses structural design
requirements specific to intermodal shipping
containers, reduce environmental impact of unused
and unrecycled intermodal shipping containers, and
increase sustainability by reducing consumption of
traditional construction materials. The proposed
modification needs to be incorporated into the code to
assure that new buildings and additions to existing
Enclosure A
Condition Explanation of Amendment
Appendix C
Appendix H
H103.1
HOA.105556295.10 147
Climatic,
Geologic,
Voluntary
appendix
Climatic,
Geologic,
Voluntary
appendix
Code
Section
Geologic,
Administrative,
Voluntary
appendix
buildings utilizing intermodal shipping containers are
designed and constructed in accordance with the
scope and objectives of the California Building Code
and California Green Building Standards Code_____
Los Angeles County is a diverse region with both
densely populated urban areas and rural areas with
various agricultural and animal husbandry
establishments. Many areas of the County have been
designated as Fire Hazard Severity Zones due to the
increased risk of fire caused by low humidity, strong
winds, and dry vegetation, particularly the rural areas, which are often used for agricultural purposes.
Furthermore, the greater Los Angeles/Long Beach
region is situated over a vast array of earthquake fault systems capable of producing major earthquakes,
similar to or exceeding the geologic activities
occurring during the 1994 Northridge Earthquake.
Due to the need for agricultural buildings to perform
appropriately in the County due to its geology and
climate, adoption of building standards for such
structures is required._________________________
Los Angeles County is a diverse region with both
densely populated urban areas and rural areas with
various signs used in the County. The Los Angeles
region is situated over a vast array of earthquake fault systems capable of producing major earthquakes,
similar to or exceeding the geologic activities
occurring during the 1994 Northridge Earthquake. In
addition, weather events occur seasonally with high
winds such as the Santa Ana Winds. Due to the need
for signs to perform well in the County due to its
climate and geology, adoption of building standards
for signs is required.__________________________
Los Angeles County is a diverse region with both
densely populated urban areas and rural areas with
various signs used in the County. The greater
Los Angeles/Long Beach region is situated over a
vast array of earthquake fault systems capable of
producing major earthquakes, similar to or exceeding
the geologic activities occurring during the 1994
Northridge Earthquake. This provision is amended to
Enclosure A
Condition Explanation of Amendment
H103.2
H104.1
H105.1
H110.1
HOA.105556295.10 148
Climatic,
Voluntary
appendix
H106.1,
H106.2
Code
Section
Geologic,
Voluntary
appendix
Administrative,
Voluntary
appendix
Administrative,
Voluntary
appendix
Geologic,
Administrative,
Voluntary
appendix
cross-reference to applicable legal provisions and
also to ensure that signs are located in such a way as
to avoid damage to adjacent structures and people
given the potential for earthquakes in the County.
Los Angeles County is a diverse region with both
densely populated urban areas and rural areas with
various signs used in the County. The greater
Los Angeles/Long Beach region is situated over a
vast array of earthquake fault systems capable of
producing major earthquakes, similar to or exceeding
the geologic activities occurring during the 1994
Northridge Earthquake. This provision is amended to
cross-reference to applicable legal provisions and
also to ensure that sign projections and clearances
are located in such a way as to avoid damage to
adjacent structures and people given the potential for
earthquakes in the County._____________________
The greater Los Angeles/Long Beach region is
situated over a vast array of earthquake fault systems
capable of producing major earthquakes, similar to or
exceeding the geologic activities occurring during the
1994 Northridge Earthquake. Due to the risk of
geologic activities in the Southern California area,
buildings and structures require a high level of
performance, which is directly proportional to the
weight of a structure. By adding the weight of a sign
to the identification placard, it will improve the ability to provide structural verification in the event of
damage or future modifications._________________
The amendment provides a cross reference to
Chapter 24 for user convenience.
This change corrects a call out from the model
electrical code to the relevant local electrical code and clarifies that a separate electrical permit is required for user convenience.__________________________
Due to the potential for severe local weather
conditions with torrential rain, it is necessary to clarify that no portions of the roof sign and supporting
members may interfere with proper roof drainage to
Enclosure A
Condition Explanation of Amendment
H116
J101.10
J106.1
HOA.105556295.10 149
J105.1-
J105.14
Climatic,
Voluntary
appendix
Code
Section
J101.1 to
J101.9
J107.1-
J107.7
J103.1 -
J103.2 and
Figure J 103.2
Geological
Topographical
Geological
Topographical
Climatic
Geological
Topographical
Climatic
Geological
Topographical
Climatic
Geological
Topographical
Climatic
Geological
Topographical
Climatic
Geological
Topographical
Climatic
prevent the potential for roof collapse due to water
accumulation.________________________________
Due to the potential for severe local weather with high speed winds and hot, dry conditions, it is necessary
that the most recent test standards as specified in
Chapter 35 are adopted in lieu of the older test
standards specified in Section H116. This ensures
that the risk from fires is minimized.______________
Sections revised to include erosion and sediment
control measures to address the complex and diverse
set of soil types and geologic conditions that exist in the greater Los Angeles County/Long Beach region.
Section revised to maintain safety and integrity of
public or private property adjacent to grading sites
due to the complex and diverse set of soil types,
climates, and geologic conditions that exist in the
greater Los Angeles County/Long Beach region.____
Sections revised to provide adequate control of
grading operations typical to the greater Los Angeles
County/Long Beach region due to the complex and
diverse set of soil types, climates, and geologic
conditions that exist in the greater Los Angeles
County/Long Beach region._____________________
Sections revised or added to provide adequate control
of grading operations typical to the greater Los
Angeles County/Long Beach region due to the
complex and diverse set of soil types, climates, and
geologic conditions that exist in the greater
Los Angeles County/Long Beach region.__________
Sections revised or added to provide adequate control
of grading operations typical to the greater Los
Angeles County/Long Beach region due to the
complex and diverse set of soil types, climates, and
geologic conditions that exist in the greater
Los Angeles County/Long Beach region.__________
Section revised to require more stringent cut slope
ratios to address the complex and diverse set of soil
types and geologic conditions that exist in the greater Los Angeles County/Long Beach region.__________
Sections revised to provide more stringent fill
requirements for slope stability and settlement due to
J104.2.1 -
J 104.4
Enclosure A
Condition Explanation of Amendment
Climatic
J109.5
J111
HOA.105556295.10 150
J108.1 -
J108.4
J109.1 -
J109.3
Code
Section
J107.8-
J107.9
J110.1 -
J110.8.5
Appendix Q
Q101.1,
Q102.1,
Q103.1,
Q103.4,
Q107.1
Administrative,
Voluntary
appendix
Climatic
Geologic
Topographical
Geological
Topographical
Climatic
Geological
Topographical
Climatic
Geological
Topographical
Climatic
Geological
Topographical
Climatic
the complex and diverse set of soil types, climates,
and geologic conditions that exist in the greater
Los Angeles County/Long Beach region.__________
Sections revised to provide more stringent inspection
and testing requirements for fill slope stability due to the complex and diverse set of soil types, climates,
and geologic conditions that exist in the greater
Los Angeles County/Long Beach region.__________
Sections revised to provide more stringent slope
setback requirements to address the complex and
diverse set of soil types, climates, and geologic
conditions that exist in the greater Los Angeles
County/Long Beach region._____________________
Sections revised to provide more stringent drainage
and terracing requirements to address the complex
and diverse set of soil types, climates, and geologic
conditions that exist in the greater Los Angeles
County/Long Beach region._____________________
Subsection added to provide for adequate outlet of
drainage flows due to the diverse set of soil types,
climates, and geologic conditions that exist in the
greater Los Angeles County/Long Beach region.
Sections revised or added to provide for State
requirements of storm water pollution prevention and
more stringent slope planting, and slope stability
requirements to control erosion due to the complex
and diverse set of soil types, climates, and geologic
conditions that exist in the greater Los Angeles
County/Long Beach region._____________________
Section revised to reference additional standards for
soils testing due to the complex and diverse set of soil types, climates, and geologic conditions that exist in
the greater Los Angeles County/Long Beach region.
Adoption of this appendix is necessary because strict
compliance with State and local standards and laws
would prevent, hinder, or delay the mitigation of the
effects of a declared shelter crisis, local emergency or state of emergency. The modifications to this
appendix are administrative in nature, to provide
clarification of various provisions of the language of
this voluntary Appendix.
Geological
Topographical
Climatic
Geological
Topographical
Climatic
Enclosure A
Condition Explanation of Amendment
ClimaticQ106.1
Administrative
Q110.3
SECTION 93. This ordinance shall become operative on January 1, 2026. [TITLE26BUILDCODE2025CSCC]
HOA.105556295.10 151
Climatic,
Voluntary
appendix
Code
Section
Q110.1.1,
Q110.1.2
Los Angeles County is subject to extreme
temperatures, and many of these membrane
structures will be erected and occupied during severe
weather events. It is necessary to include this
amendment to ensure the safety, health, and comfort
of the occupants is maintained during extreme heat
and cold.___________________________________
These sections are a cross reference to the State
Plumbing Code requirement for user convenience and
is not adding a new building standard nor enacting a
more restrictive requirement. To the extent findings
are requested, see prefatory language in this Section.
The County may utilize mobile restroom facilities that
are physically separate from the living facilities. Due to the potential for severe local weather conditions,
with extreme temperatures or torrential rain, the
distance to the restroom facilities required for the
comfort, safety, and health of displaced people should
be reduced to 300 feet or as determined by the
Building Official.
Enclosure B
ANALYSIS
This ordinance repeals those provisions of Title 27 - Electrical Code - of the Los Angeles County Code that incorporate by reference portions of the 2022 California Electrical Code and replaces them with provisions incorporating by reference portions of the 2025 California Electrical Code, as published by the California Building Standards Commission. Unless deleted or modified herein, the previously enacted provisions of Title 27 continue in effect.
The provisions of this ordinance contain additions to the 2025 California Electrical Code and are administrative in nature in that they do not constitute changes or modifications to requirements contained in the building standards published in the 2025 California Electrical Code.
By Cu.L,u
MFA: be
HOA.105548025.13
Requested: 7/28/25
Revised: 10/8/25
MARGARET F. AMBROSE
Senior Deputy County Counsel
Public Works Division
DAWYN R. HARRISON
County Counsel
Enclosure B
ORDINANCE NO.
An ordinance amending Title 27 - Electrical Code - of the Los Angeles County Code by adopting and incorporating by reference portions of the 202225 California Electrical Code with certain changes and modifications and making other revisions thereto.
The Board of Supervisors of the County of Los Angeles ordains as follows:
SECTION 1. Sections 89.102 through 89.114 of Article 89, Article 90, Chapters 1 through 9, and Annexes A, B, C, D, E, F, G, H, I, and J, -of Title 27 of the Los Angeles County Code, which incorporate by reference and modify portions of the 204922 California Electrical Code, are hereby repealed.
SECTION 2. Section 80-1.5 is hereby amended to read as follows:
Sec. 80-1.5. California Electrical Code (CEC) Adoption by Reference.
Except as hereinafter changed or modified, Sections 89.102 through 89.114 of Article 89, Article 90, Chapters 1 through 9, and Annexes A, B, C, D, E, F, G, H, I, and J, and K, of that certain Electrical Code known and designated as the 20222025 California Electrical Code, as published by the California Building Standards Commission, are adopted and incorporated by reference into this Title 27 of the Los Angeles County Code as if fully set forth below, as Sections 89.102 through 89.114 of Article 89, Article 90, Chapters 1 through 9, and Annexes A, B, C, D, E, F, G, H, I, and-J, and K, of Title 27 of the Los Angeles County Code.
HOA.105548025.13
Enclosure B
A copy of the 20222025 California Electrical Code, hereinafter referred to as the CEC, shall be at all times maintained by the Chief Electrical Inspector for use and examination by the public.
SECTION 3. Section 80-10 is hereby amended to read as follows:
Sec. 80-10. Annual Review of Fees
The fees in this Code shall be reviewed annually by the Director of Public Works. Beginning on July 1, 1992, and thereafter on each succeeding July 1, the amount of each fee in this Code shall be adjusted as follows: Calculate the percentage movement between March of the previous year and March of the current year in the Consumer Price Index (CPI) for all urban consumers in the Los Angeles-Long BeachAnaheim, CA areas, as published by the United States Government Bureau of Labor Statistics, and adjust each fee by said percentage amount and round off to the nearest ten (10) cents; provided, however, no adjustment shall decrease any fee and no fee shall exceed the reasonable cost of providing services. When it is determined that the amount reasonably necessary to recover the cost of providing services is in excess of this adjustment, the Building Official may present fee proposals to the Board of Supervisors for approval.
SECTION 4. The provisions of this ordinance contain additions to the 2025 California Electrical Code and are administrative in nature in that they do not constitute changes or modifications to requirements contained in the building standards published in the California Electrical Code.
HOA.105548025.13 2
Enclosure B
SECTION 5. This ordinance shall become operative on January 1, 2026. [TITLE27ELECTCODE2025CSCC]
HOA.105548025.13 3
Enclosure C
ANALYSIS
By MA.Lu
HOA. 105559019.8
08/21/25
10/10/25
MA/bc
Requested:
Revised:
DAWYN R. HARRISON
County Counsel
MARGARET AMBROSE
Principal Deputy County Counsel
This ordinance repeals those provisions of Title 28 - Plumbing Code - of the Los Angeles County Code, that incorporated by reference portions of the 2022 Edition of the California Plumbing Code and replaces them with provisions incorporating by reference portions of the 2025 California Plumbing Code, as published by the California Building Standards Commission, with certain changes and modifications. Unless deleted or modified herein, the previously enacted provisions of Title 28 continue in effect.
The changes and modifications to requirements contained in the building standards published in the 2025 California Plumbing Code that are contained in this ordinance are based upon express findings contained in the ordinance that such changes are reasonably necessary due to local climatic, geologic, or topographic conditions. These changes and modifications are substantially equivalent to changes or modifications previously filed with the California Building Standards Commission by the County of Los Angeles which were in effect as of September 30, 2025, in compliance with recent changes to section 17958 of the California Health and Safety Code.
This ordinance also makes certain modifications to the administrative provisions of Title 28.
State law requires that the County's Plumbing Code impose the same requirements as are contained in the building standards published in the most recent edition of the California Plumbing Code except for changes or modifications deemed reasonably necessary by the County because of local climatic, geologic, or topographic conditions.
Enclosure C
ORDINANCE NO.
An ordinance amending Title 28 - Plumbing Code - of the Los Angeles County Code, to adopt and incorporate by reference portions of the 2025 California Plumbing Code, with certain changes and modifications, and to make other revisions thereto.
The Board of Supervisors of the County of Los Angeles ordains as follows:
SECTION 1. Sections 119.1.2.0 through 119.1.14.0 of Chapter 1, Chapters 2 through 17, and Appendices A, B, D, H, I, and J, of the Los Angeles County Code, which incorporate by reference and modify portions of the 2022 California Plumbing Code, are hereby repealed.
SECTION 2. Chapter 1 is hereby amended to read as follows:
CHAPTER 1
ADMINISTRATION
100 ADOPTION AND INCORPORATION BY REFERENCE.
Except as hereinafter changed or modified, Sections 1.2.0 through 1.14.0 of Chapter 1, Division I, of that certain Plumbing Code known and designated as the 20222025 California Plumbing Code, as published by the California Building Standards Commission, are adopted and incorporated by reference into this Title 28 of the Los Angeles County Code as if fully set forth below, and shall be known as Sections 119.1.2.0 through 119.1.14.0, respectively, of Chapter 1 of Title 28 of the Los Angeles County Code.
Except as hereinafter changed or modified, Chapters 2 through 17 and Appendices A, B, D, H, I,-and J, M, and S, of that certain Plumbing Code known and HOA. 105559019.8
Enclosure C
designated as the 20222025 California Plumbing Code as published by the California Building Standards Commission, are adopted and incorporated by reference into this Title 28 of the Los Angeles County Code as if fully set forth below, and shall be known as Chapters 2 through 17, and Appendices A, B, D, H, I,-and J, M, and S, of Title 28 of the Los Angeles County Code.
A copy of the 20222025 California Plumbing Code shall be at all times maintained by the Chief Plumbing Inspector for use and examination by the public.
SECTION 3. Section 204.0 is hereby amended to read as follows:
204.0 -BBuilding Code. The most recent edition of Title 26 of the Los Angeles County Code.
SECTION 4. Section 206.0 is hereby amended to read as follows:
206.0 -DDemand Hot Water Recirculation System, A hot water recirculation system requiring manual activation and equipped with a thermostat that will automatically shut off the recirculation pump when the water temperature reaches a preset level at the point of use.
HOA. 105559019.8 2
Enclosure C
SECTION 5. Section 207.0 is hereby amended to read as follows:
207.0 -EElectrical Code. The most recent edition of Title 27 of the Los Angeles County Code.
SECTION 6. Section 210.0 is hereby amended to read as follows:
210.0 -HHot Water Recirculation System. A hot water distribution system that reduces the time needed to deliver hot water to fixtures that are distant from the water heater, boiler, or other water heating equipment. The recirculation system is comprised of hot water supply and return piping with shutoff valves, balancing valves, and circulating pumps, and a method of controlling the circulating system.
SECTION 7. Section 215.0 is hereby amended to read as follows:
215.0 -MMechanical Code. The most recent edition of Title 29 of the Los Angeles County Code.
HOA. 105559019.8 3
Enclosure C
SECTION 8. Section 301.2.2 is hereby amended to read as follows:
301.2.2 Standards. Standards listed or referred to in this eChapter or other chapters cover materials that will conform to the requirements of this eCode, where used in accordance with the limitations imposed in this or other chapters thereof and their listing. Where a standard covers materials of various grades, weights, quality, or configurations, the portion of the listed standard that is applicable shall be used.
Design and materials for special conditions or materials not provided for herein shall be permitted to be used only by special permission of the Authority Having Jurisdiction after the Authority Having Jurisdiction has been satisfied as to their adequacy. A list of plumbing standards that appear in specific sections of this eCode is referenced in Table 1701.1. Standards referenced in Table 1701.1 shall be applied as indicated in the applicable referenced section. A list of additional approved standards, publications, practices, and guides that are not referenced in specific sections of this eCode appear in Table 1701.2. Solar thermal energy systems and material standards are referenced in Tables U 18.1 and U 18.2 of Appendix U. AnIAPMO Installation Standards isare referenced in Appendix I for the convenience of the users of this ©Code. It is not considered as a part of this ©Code unless formally adopted as such by the Authority Having Jurisdiction.
HOA. 105559019.8 4
Enclosure C
SECTION 9. Section 301.3 is hereby amended to read as follows:
301.3 Alternate Materials and Methods of Construction
Equivalency and Modifications.
301.3.1 Alternate Materials and Methods of Construction.
Nothing in this ©Code is intended to prevent the use of systems, methods, or devices of equivalent or superior quality, strength, fire resistance, effectiveness, durability, and safety over those prescribed by this eCode. Technical documentation shall be submitted to the Authority Having Jurisdiction to demonstrate equivalency prior to installation. The Authority Having Jurisdiction shall have the authority to approve or disapprove the system, method, or device for the intended purpose on a case-by-case basis. [HCD 1] (See Section 1.8.7).
301.3.1.1 Testing.
301.3.1.1.1 Tests.
301.3.1.2.1.2 Request by Authority Having Jurisdiction. 301.3.2 Modifications. Whenever there are practical difficulties involved in carrying out the provisions of this Code, the Authority Having Jurisdiction shall have the authority to grant modifications on a case-by-case basis, upon application of the owner or the owner's authorized agent, provided the Authority Having Jurisdiction HOA. 105559019.8 5
Enclosure C
shall first find that a special individual reason makes the strict letter of this Code impractical, that the modification is in conformity with the spirit and purpose of this Code, and that such modification does not lessen any health, fire-protection, or other life-safety-related requirements. The details of any action granting modifications shall be recorded and entered in the files of the Authority Having Jurisdiction. Application for approval of a modification shall be in accordance with Section 103.12.2.
SECTION 10. Section 304.1 is hereby amended to read as follows:
304.1 General. Plumbing fixtures, drains, appurtenances, and appliances, used to receive or discharge liquid wastes or sewage, shall be connected properly to the drainage system of the building or premises, in accordance with the requirements of this eCode.
Exception: [HCD 1] Limited-density owner-built rural dwellings. Where conventional plumbing, in all or in part, is installed within the structure, it shall be installed in accordance with the provisions of this eCode. Alternative materials and methods shall be permitted provided that the design complies with the intent of the eCode, and that such alternatives shall perform to protect health and safety for the intended purpose.
Dual waste piping shall be installed to permit the discharge from clothes washers, bathtubs, showers, and bathroom/restroom wash basins to be used for a graywater irrigation system. Partial connection of plumbing fixtures to the graywater system, based on accepted engineering practices and reguired volume of water for irrigation, shall be accepted. Graywater systems shall be designed and installed in HOA. 105559019.8 6
Enclosure C
accordance with Chapter 15 and other parts of this CodeExceptions:
(1) Buildings with a graywater system, rain catchment system, or recycled water system.
121 Sites with landscape areas not exceeding 500 square feet. (31 Projects where graywater systems are not permitted due to geological conditions.
(4) Additions and alterations that use the existing building drain.
SECTION 11. Section 601.2.3 is hereby added to read as follows:
601.2.3 Hot Water Recirculation Systems. A hot water
recirculation system shall be installed, as defined in Chapter 2, and shall not allow more than 0.6 gallons of water to be delivered to any fixture before hot water arrives. Hot water recirculation systems may include, but are not limited to, the following:
(1) Timer-initiated systems.
(2) Temperature sensor-initiated systems.
(3) Occupancy sensor-initiated systems.
(4) Smart hot water recirculation systems.
(5) Demand hot water recirculation systems.
(6) Other systems acceptable to the Authority Having Jurisdiction.
Exception: Minor additions and alterations as determined by the Authority Having Jurisdiction that use the existing water distribution pipe system and which does not contain a hot water recirculation system.
HOA. 105559019.8 7
Enclosure C
SECTION 12. Section 609.7 is hereby amended to read as follows:
609.7 Abutting Lot. Nothing contained in this eCode shall be construed to prohibit the use of all or part of an abutting or adjacent lot or lots to:
SECTION 13. Section 721.3 is hereby added to read as follows:
721.3 Public Sewer. If the public sewer does not extend to a point from which each building on a lot or parcel of land large enough to permit future subdivision can be independently served, the property owner shall construct a public sewer as required by Title 20 - Utilities - of the Los Angeles County Code, Division 2 (Sanitary Sewer and Industrial Waste), to provide adequate sewerage for each such possible parcel.
Exception: When the Authority Having Jurisdiction finds that the character of a lot is such that no further subdivision can be reasonably anticipated, or the use is such as to preclude subdivision, or where the owner has executed a covenant stating that the lot or parcel of land, together with all improvements thereon, will be maintained as a unit and that before any subdivision is made or any portion of said lot is transferred to another owner, separate sewerage facilities as hereinbefore required in this Section will be installed, the drainage system of all buildings may be connected to a common building sewer or private sewage disposal system. The covenant shall be recorded by the owner in the office of the Registrar-Recorder as part of the conditions of ownership of said property. Such agreement shall be binding on all heirs, successors, and assigns to said property.
HOA. 105559019.8 8
Enclosure C
This exception shall apply only while the whole of such lot remains in one undivided ownership. Upon the transfer of any portion of such lot other than the whole thereof to another owner, whether such transfer is made before or after the operative date of the ordinance adding this provision, the exception shall cease and a person shall not use or maintain any building or structure except in compliance with the provisions of this Code. As used in this Section, a sale, foreclosure, or contract to sell by the terms of which the purchaser is given the right of possession shall be deemed a transfer.
SECTION 14. Section 728.0 is hereby added to read as follows:
728.0 Building Sewer Connection Requirements.
728.1 Size. That portion of the building sewer extending from the public sewer to the property line shall be not less than 4 inches (100 mm) in internal diameter.
728.2 Depth. When laid within the limits of any public
thoroughfare when the public sewer is sufficiently deep, no building sewer shall be less than 6 feet (1.8 m) below grade. Whenever practicable, the alignment and grade of each building sewer shall be straight from the public sewer to the property line. 728.3 Taps and Saddles. Whenever it becomes necessary to connect a building sewer to a public sewer at a point where no branch fitting has been installed in the public sewer, such connection shall be made as required by Title 20 - Utilities - of the Los Angeles County Code, Division 2 (Sanitary Sewer and Industrial Waste).
HOA. 105559019.8 9
Enclosure C
728.4 Connection to Trunks. Whenever required, an approvedtype unvented running trap shall be installed in each building sewer, which is connected directly to a trunk sewer by any means whatsoever. Each such running trap shall be installed in the building sewer between the house drain or drains and the connection to the trunk sewer. A T-type cleanout shall be installed in the building sewer immediately below the running trap. This cleanout need not be extended to grade. Every running trap and cleanout shall be located on the lot served by the building sewer. 728.5 Street Widening. Where a future street or road-widening area has been established by the master plan of highways or in any other manner, all work installed in such area shall conform to the requirements established in this or other related ordinances for work on public property.
728.6 Main Line Required. Building sewer construction shall conform to the requirements of main line sewers as set forth in Title 20 - Utilities - of the Los Angeles County Code, Division 2 (Sanitary Sewer and Industrial Waste), when either of the following conditions exists:
1. Where the Authority Having Jurisdiction requires such construction because of the character or quantity of the sewage or industrial waste to be discharged.
2. Where the sewer is designed to be, or proposed to be, dedicated to the County of Los Angeles at the present or any future time.
HOA. 105559019.8 10
Enclosure C
SECTION 15. Table H 101.8 of Appendix H is hereby amended to read as follows:
BUILDING SEWER DISPOSAL FIELD
Building or structures1 2 feet 5 feet 8 feet8 feet
Clear2 5 feet 5 feet 8 feet
50 feet 100 feet 150 feet
100 feet7
1 foots 5 feet 5 feet
5 feet 5 feet
10 feet 10 feet 10 feet 10 feet 6
Pressure public water main
1 4
8 9
10 HOA. 105559019.8 11
50 feet3
50 feet
5 feet
4 feet4
5 feet
SEPTIC
TANK
50 feet
10 feet
5 feet
5 feet
2 3
5 6
7 150 feet7
10 feet
12 feet
5 feet
For SI units: 1 foot = 304.8 mm
Notes:
Including porches and steps, whether covered or uncovered, breezeways, roofed porte cocheres, roofed patios, carports, covered walks, covered driveways, and similar structures or appurtenances.
See Section 312.3.
Drainage piping shall clear domestic water supply wells by not less than 50 feet (15 240 mm). This distance shall be permitted to be reduced to not less than 25 feet (7620 mm) where the drainage piping is constructed of materials approved for use within a building.
Plus 2 feet (610 mm) for each additional 1 foot (305 mm) of depth in excess of 1 foot (305 mm) below the bottom of the drain line. (See Section H 601.0)
See Section 720.0.
For parallel construction - For crossings, approval by the Health Department shall be required.
These minimum clear horizontal distances shall also apply between disposal fields, seepage pits, and the mean high-tide line.
Where disposal fields, seepage pits, or both are installed in sloping ground, the minimum horizontal distance between any part of the leaching system and ground surface shall be 15 feet (4572 mm).
Where special hazards are involved, the distance required shall be increased as may be directed by the Authority Having Jurisdiction.
The septic tank and seepage pit shall not be within the protected zone of an oak tree as defined by Section 22.14.150 of Title 22 - Planning and Zoning - of the Los Angeles County Code.
SEEPAGE PIT
OR
CESSPOOL
Property line adjoining private
property
Water supply wells2___________
Streams and other bodies of water2
Trees10
Seepage pits or cesspools8_____
Disposal field8
On-site domestic water service line
Distribution box
MINIMUM HORIZONTAL
DISTANCE
TABLE H 101.8
LOCATION OF SEWAGE DISPOSAL SYSTEM