Who enforces each one, what edition applies, and what changes next. 6 of 9 state-level topic areas checked against primary sources. OSHA state plan: California State Plan (Cal/OSHA, Division of Occupational Safety and Health, Department of Industrial Relations).
| Area | In force | Authority | Next |
|---|---|---|---|
| Fire | 2025 California Fire Code (Title 24, Part 9), based on the 2024 IFC with California amendments; plus Title 19 CCR Div. 1 State Fire Marshal regulationsDGS states the 2025 Title 24 edition was published Jul 1, 2025 and is effective Jan 1, 2026; Part 9 is based on the 2024 IFC, with amendments proposed by the State Fire Marshal. Local fire departments and the AHJ confirm which edition applies to a given permit. SourceChecked on the source | Local fire chiefs/fire departments in their jurisdictions; State Fire Marshal in state-owned, specified state-occupied buildings and state institutions | Supplement effective Jul 1, 20272025 Intervening Code Cycle supplement to Part 9 effective Jul 1, 2027 (BSC page re-read Oct 19, 2026; advisory review and comment periods still TBD) |
| Building | 2025 California Building Code (Title 24, Part 2), based on the 2024 IBC with California amendments; Part 10 Existing Building Code from the 2024 IEBCDGS states the 2025 edition takes effect Jan 1, 2026; the triennial cycle proposed adopting 2024 ICC and IAPMO model codes and the 2023 NEC. The 2025 Intervening Cycle supplements are scheduled to take effect Jul 1, 2027. SourceChecked on the source | Local city/county building departments; specified state agencies for state-regulated occupancies. Adopting body: California Building Standards Commission | Supplement effective Jul 1, 20272025 Intervening Code Cycle supplements effective Jul 1, 2027 (BSC page re-read Oct 19, 2026; comment periods TBD) |
| Elevators | Title 8 CCR Subchapter 6 Elevator Safety Orders; Group 4 incorporates ASME A17.1-2004 (contracts signed on/after May 1, 2008); Groups 2-3 cover earlier installations; A17.3 not adoptedSection 3141 applies ASME A17.1-2004, with listed exceptions, to conveyances whose installation contracts were signed on or after May 1, 2008. Group V (A17.1-2019) was heard Jun 18, 2026; a Final Statement of Reasons is posted and the Oct 15, 2026 Standards Board agenda lists Elevator Safety Orders revisions for adoption. Outcome, OAL approval and effective date not yet read. SourceChecked on the source | Cal/OSHA Elevator Unit (Division of Occupational Safety and Health, Department of Industrial Relations); rules adopted by the Occupational Safety and Health Standards Board | A17.1-2019 rulemaking pendingGroup V Elevator Safety Orders (A17.1-2019): listed for adoption on the Oct 15, 2026 Standards Board agenda; as of Oct 21, 2026 the Group V page shows no adoption, OAL approval or effective date and no Oct 15 minutes are posted; next Board meeting Nov 19, 2026 |
| Boilers | Labor Code 7620-7771; Title 8 CCR Boiler and Fired Pressure Vessel Safety Orders (secs. 750-797) and Unfired Pressure Vessel Safety Orders (secs. 450-560)Cal/OSHA permits cover air tanks above about 1.5 cu ft, LPG tanks above 125 gal and power boilers above 15 psig. Law: Labor Code 7620-7771; Title 8 secs. 450-560, 750-797. A proposed emergency fee rule (notice Oct 15, 2026) raises the inspection rate from $150 to $180 per hour and the permit-to-operate fee from $45 to $55. SourceChecked on the source | Cal/OSHA Pressure Vessel Unit (DOSH, Department of Industrial Relations); inspections by state inspectors or qualified insurance-company inspectors | Rulemaking pendingProposed emergency regulation, 8 CCR 344, 344.1, 344.2 (notice Oct 15, 2026): effective on filing with the Secretary of State; filing date not yet confirmed on the primary page. Confirm current fees with the Cal/OSHA Pressure Vessel Unit |
| Pools | Title 22 CCR Div. 4, Ch. 20 Public Pools (secs. 65501-65551; current text effective Jan 1, 2015, OAL file 2014-0902-02S); Title 24 Part 2 Ch. 31B public pool design and construction (secs. 3101B-3162B); Health and Safety Code secs. 116025-116068CDPH's final text sets operator duties: daily disinfectant and pH tests with records kept two years, water clarity and closure rules, a no-lifeguard warning sign, rescue pole and life ring, contamination and drowning response, and closure by the enforcing agent, defined in sec. 65501 as the local health officer or environmental health director, their registered staff, or a CDPH inspector. SourceReported, in verification | Local county/city environmental health departments (CDPH adopts the Title 22 rules); local building departments for Chapter 31B plan approval and permits | In forceIn force (DPH-03-017A final text re-read Oct 24, 2026) |
| Lodging | State Housing Law covers construction and upkeep of hotels and motels, enforced locally; hotels are R-1 occupancies under the California Fire and Building Codes; Title 19 sec. 3.09 emergency planning; Title 8 sec. 3345 (hotel housekeeping)8 CCR 3345 (read on dir.ca.gov 2026-10-15; filed Mar 9, 2018, operative Jul 1, 2018) requires a written housekeeping musculoskeletal injury prevention program, worksite evaluations at least annually, annual program review and training, and records to the Division within 72 hours of request. Local agencies enforce the State Housing Law; 19 CCR 3.09 not read from a state source. SourceReported, in verification | Local building, housing, health and fire departments (HCD oversees the State Housing Law); Cal/OSHA for sec. 3345; State Fire Marshal adopts Title 19 rules | In forceIn force (8 CCR 3345 re-read Oct 19, 2026) |
| Workplace | California State Plan (Cal/OSHA); Title 8 CCR safety orders; covers private-sector and state/local government employersCal/OSHA State Plan: approved May 1, 1973, certified Aug 19, 1977; operational status agreement renewed Jan 5, 2024. Covers private-sector and state and local government employers; excludes federal employers and some maritime, military and tribal settings. Cal/OSHA says the Board must adopt a workplace violence standard by Dec 31, 2026; draft sec. 3343 remained a discussion draft in Oct 2026. SourceChecked on the source | Cal/OSHA (Division of Occupational Safety and Health, DIR); standards adopted by the Occupational Safety and Health Standards Board | Workplace violence standard Dec 31, 2026Standards Board must adopt a general-industry workplace violence prevention standard by Dec 31, 2026; draft Title 8 sec. 3343 still in advisory stage (in-person advisory meeting on the Sept 2026 draft held Oct 27, 2026; page read Oct 28 shows no later materials and no Board notice), so timing is uncertain |
| Retrofit | Exterior elevated element (balcony, deck, stairway, walkway) inspections: Health and Safety Code 17973 (SB 721, amended by AB 2579, 2024) for buildings with 3+ multifamily dwelling units; Civil Code 5551 (SB 326, amended by SB 410, effective Jan 1, 2026) for condominium associationsCovers wood-supported elements more than 6 ft above ground. Sec. 17973: inspection by Jan 1, 2026, then every 6 years; excludes common interest developments; reports showing an immediate threat go to the local enforcement agency within 15 days. Civil Code 5551: first by Jan 1, 2025, then every 9 years, for buildings with 3+ attached units. SourceReported, in verification | Owners and associations hire the inspector: sec. 17973 allows licensed architects, civil or structural engineers, A/B/C-5 contractors with 5 years' experience, or certified building inspectors; Civil Code 5551 requires a licensed structural or civil engineer or architect. Local enforcement agencies act on hazard reports | Beyond 24 monthsNext cycles fall outside 24 months: sec. 17973 by Jan 1, 2032; Civil Code 5551 by Jan 1, 2034 |
| Environmental | Federal EPA baseline plus California layer: UST leak prevention implemented by CUPAs under State Water Board rules (23 CCR Ch. 16, amendments proposed); Sanitary Sewer Systems General Order 2022-0103-DWQ; asbestos NESHAP notices to delegated local air districts or, in non-delegated districts, EPA Region 9; engines and boilers permitted by local air districtsSSO Order 2022-0103-DWQ (adopted Dec 6, 2022, effective Jun 5, 2023): Cat 1 reaches surface water; Cat 2 1,000 gal+; Cat 3 50-999 gal; Cat 4 under 50 gal, reported annually. Single-walled USTs had to close by Dec 31, 2025; CUPAs enforce from Jan 1, 2026. Air-district generator/boiler permits and backflow/grease rules not read; confirm locally. SourceChecked on the source | State Water Resources Control Board; local CUPAs; local air districts (CARB oversight); local sewer and water utilities; U.S. EPA | In forceHFC leak-repair rule in force since Jan 1, 2026; next Tier II filing March 1, 2027; automatic leak detection for existing 1,500 lb+ commercial refrigeration by Jan 1, 2027 |
What our record said before and after each change, with the date and the official source. A change to the record is not by itself a change in the law: an edition, a date or a source may have been corrected or made more precise. Confirm the current text with the authority.
2025 California Fire Code (Title 24, Part 9), based on the 2024 IFC with California amendments; plus Title 19 CCR Div. 1 State Fire Marshal regulations. DGS states the 2025 Title 24 edition was published Jul 1, 2025 and is effective Jan 1, 2026; Part 9 is based on the 2024 IFC, with amendments proposed by the State Fire Marshal. Local fire departments and the AHJ confirm which edition applies to a given permit. Enforced by: Local fire chiefs/fire departments in their jurisdictions; State Fire Marshal in state-owned, specified state-occupied buildings and state institutions.
2025 California Building Code (Title 24, Part 2), based on the 2024 IBC with California amendments; Part 10 Existing Building Code from the 2024 IEBC. DGS states the 2025 edition takes effect Jan 1, 2026; the triennial cycle proposed adopting 2024 ICC and IAPMO model codes and the 2023 NEC. The 2025 Intervening Cycle supplements are scheduled to take effect Jul 1, 2027. Enforced by: Local city/county building departments; specified state agencies for state-regulated occupancies. Adopting body: California Building Standards Commission.
Elevators: Cal/OSHA Elevator Unit (Division of Occupational Safety and Health, Department of Industrial Relations); rules adopted by the Occupational Safety and Health Standards Board (Title 8 CCR Subchapter 6 Elevator Safety Orders; Group 4 incorporates ASME A17.1-2004 (contracts signed on/after May 1, 2008); Groups 2-3 cover earlier installations; A17.3 not adopted). Boilers: Cal/OSHA Pressure Vessel Unit (DOSH, Department of Industrial Relations); inspections by state inspectors or qualified insurance-company inspectors (Labor Code 7620-7771; Title 8 CCR Boiler and Fired Pressure Vessel Safety Orders (secs. 750-797) and Unfired Pressure Vessel Safety Orders (secs. 450-560)).
California runs an OSHA-approved state plan: California State Plan (Cal/OSHA, Division of Occupational Safety and Health, Department of Industrial Relations). The state agency enforces workplace safety rules for most private employers.
Fire: Supplement effective Jul 1, 2027 (2025 Intervening Code Cycle supplement to Part 9 effective Jul 1, 2027 (BSC page re-read Oct 19, 2026; advisory review and comment periods still TBD)); Building: Supplement effective Jul 1, 2027 (2025 Intervening Code Cycle supplements effective Jul 1, 2027 (BSC page re-read Oct 19, 2026; comment periods TBD)); Boilers: Rulemaking pending (Proposed emergency regulation, 8 CCR 344, 344.1, 344.2 (notice Oct 15, 2026): effective on filing with the Secretary of State; filing date not yet confirmed on); Dec 1, 2026: Los Angeles County: City of Los Angeles EBEWE audit and retro-commissioning due for Compliance Year 2026, Building IDs ending in 0 or 1; Dec 31, 2026: Statutory deadline for the Occupational Safety and Health Standards Board to adopt a general-industry workplace violence prevention standard (Labor Code 6401.9).
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