Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
2025 CALIFORNIA BUILDING STANDARDS CODE UPDATE
Chief Building Official: Agustine Figueroa
December 2, 2025
Attachment No. 3
Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
Building Code Adoption Process
• The California Building Standards Commission (CBSC) is the regulatory body that is responsible for the review and adoption of building standards to be used throughout the state of California. • These regulations are the minimum standard used to preserve life, safety, and welfare in the construction, alteration, and repair of the built environment.
• The CBSC updates these codes every 3 years. Ordinance No. 4364 provides the required updates to comply with State law.
• CBSC adopted the 2025 Codes on or around January 1, 2025. • Codes to be published by July 1, 2025.
• Codes take effect 180 days after on January 1, 2026.
• City is mandated by State law to adopt the Codes by January 1, 2026.
Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
Building Code Adoption Process
• Public hearing to consider a citywide Ordinance to adopt the Codes and local amendments. • City shall file Ordinance with the CBSC.
• Adopted Codes becomes effective January 1, 2026.
• All projects submitted prior to January 1, 2026 are subject to the previously adopted Codes (2022).
• All projects submitted on or after January 1, 2026 are subject to the newly adopted Codes.
Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
Codes
• Model Codes
• California Code of Regulations (CCR)
• City of Pomona Municipal Code (PMC)
Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
Model Codes
• 2024 International Building Code (IBC)
• 2024 International Existing Building Code (IEBC)
• 2024 International Residential Code (IRC)
• 2024 International Fire Code (IFC)
• 2023 National Electrical Code (NEC)
• 2024 Uniform Mechanical Code (UMC)
• 2024 Uniform Plumbing Code (UPC)
Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
Model Codes
• 1997 Uniform Housing Code (UHC)
• 2024 International Property Management Code (IPMC)
Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
Local Government Adoption of Title 24 by Ordinance
• Title 24, California Code of Regulations is applicable to all occupancies throughout California, whether or not the local government takes any action to adopt Title 24 (Health and Safety Code, Sections 17950 and 18938(d).)
• Where is the local jurisdiction's authority to adopt and amend a local code legally established? • HSC 18941.5 (Building Standards Law)
• HSC 17958 (State Housing Law)
• In adopting Title 24 for local enforcement, the jurisdiction may amend the standards if such amendments are necessary to address a local geologic, topographic or climatic condition.
Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
What is Title 24, California Code of Regulations?
Administrative Code, Title 24 Part 1 (CAC)
Building Code, Title 24 Part 2 (CBC)
Residential Code, Title 24 Part 2.5 (CRC)
Electrical Code, Title 24 Part 3 (CEC)
Mechanical Code, Title 24 Part 4 (CMC)
Plumbing Code, Title 24 Part 5 (CPC)
Energy Code, Title 24 Part 6 (CEEC)
Wildland Urban Interface Code, Title 24, Part 7
Fire Code, Title 24 Part 9 as amended by 2023 LA County Fire Code (CFC) Existing Building Code, Title 24, Part 10
Historic Building Code, Title 24, Part 8 (CHBC)
Reference Standards Code, Title 24, Part 12
Green Building Standards Code, Title 24 Part 11 (CALGreen)
Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
Amended Codes
Administrative and T echnical Amendments
• California Building Code
• Appendix J (Grading)
• California Residential Code
• Adopt Appendix CI (Swimming Pool Safety Act)
•California Fire Code
• No new amendments, but changes were made as a result of the addition of Part 7: WUI Code •California Existing Building Code
• Appendix A, Guidelines for the seismic retrofit of existing buildings Administrative Only
•California Electrical Code
•California Plumbing Code
•California Mechanical Code
•CA Wildland-Urban Interface Code
•Green Building Standards Code
Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
• Introduce Part 7: the California Wildland-Urban Interface Code. This new part integrates California Residential Code Section R337, California Building Code Chapter 7A, and California Fire Code Chapter 49 to strengthen wildfire resilience in areas where development meets wildland. • Establishes requirements for defensible space, ignition-resistant construction, water supply, and emergency access, ensuring consistent statewide protection. • Short-term and long-term bicycle parking requirements. • Sprinkler requirements.
Significant Changes from 2022 to 2025 Edition
Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
State & Local Amendments
Updates included by State Agencies
• Update of all CA Codes
• Update to Building Energy Efficiency Requirements
• Relocation of Wildland-Urban Interface (WUI) requirements to standalone Part 7 of CCR Title 24 • Generally minor revisions this adoption cycle
Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
Recommendation
It is recommended that the City Council:
• Approve the first reading of Ordinance No. 4364 adopting the 2025 California Building Standards Code and related model codes with appendices by amending Pomona City Code Article I.
Chapter 74 Section 74-1 and Article II Section 74-31.
Development Services Department | Building & Safety Division
CITY OF POMONA CITY COUNCIL
CITY OF POMONA CITY COUNCIL