Chapter 1 — GENERAL CODE PROVISIONS
1.1.3 Scope — 2025 California Plumbing Code
California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-10-19 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Plumbing Code (Title 24, Part 5) § 1.1.3 · Effective January 1, 2026 · Official source: Building Standards Commission
The provisions of this code shall apply to the construction, alteration, movement, enlargement, replace- ment, repair, equipment, use and occupancy, location, main- tenance, removal, and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures throughout the State of California.
1.1.3.1 Non-State-Regulated Buildings, Structures, and Applications. Except as modified by local ordinance pur- suant to Section 1.1.8, the following standards in the Cal- ifornia Code of Regulations, Title 24, Parts 2, 2.5, 3, 4, 5, 6, 7, 9, 10 and 11 shall apply to all occupancies and applications not regulated by a state agency.
1.1.3.2 State-Regulated Buildings, Structures, and Applications. The model code, state amendments to the model code, and/or state amendments where there are no relevant model code provisions shall apply to the fol- lowing buildings, structures, and applications regulated by state agencies as specified in Sections 1.2.0 through 1.14.0, except where modified by local ordinance pur- suant to Section 1.1.8. When adopted by a state agency, the provisions of this code shall be enforced by the appro- priate enforcing agency, but only to the extent of author- ity granted to such agency by the state Legislature.
Note: See “How to Distinguish Between Model Code Language and California Amendments” in the front of the code.
1. State-owned buildings, including buildings con- structed by the Trustees of the California State Uni- versity, and to the extent permitted by California laws, buildings designed and constructed by the Regents of the University of California, and regu-
lated by the Building Standards Commission. See Section 1.2.0 for additional scope provisions.
2. Section 1.3.0 is reserved for the Board of State and Community Corrections.
3. Section 1.4.0 is reserved for the Department of Con- sumer Affairs.
4. Section 1.5.0 is reserved for the California Energy Commission.
5. Section 1.6.0 is reserved for the Department of Food and Agriculture.
6. Organized camps, laboratory animal quarters, pub- lic swimming pools, radiation protection, commis- saries serving mobile food preparation vehicles, and wild animal quarantine facilities regulated by the Department of Public Health. See Section 1.7.0 for additional scope provisions.
7. Hotels, motels, lodging houses, apartments, dwellings, dormitories, condominiums, shelters for homeless persons, congregate residences, employee housing, factory-built housing, and other types of dwellings containing sleeping accommodations with or without common toilets or cooking facilities. See Section 1.8.2.1.1 for additional scope provisions.
8. Accommodations for persons with disabilities in buildings containing newly constructed covered multifamily dwellings, new common use areas serv- ing existing covered multifamily dwellings, additions to existing buildings where the addition alone meets the definition of covered multifamily dwellings, and new common use areas serving new covered multi- family dwellings which are regulated by the Depart- ment of Housing and Community Development. See Section 1.8.2.1.2 for additional scope provisions.
9. Permanent buildings and permanent accessory buildings or structures constructed within mobile- home parks and special occupancy parks regulated by the Department of Housing and Community Development. See Section 1.8.2.1.3 for additional scope provisions.
10. Accommodations for persons with disabilities regu- lated by the Division of the State Architect. See Sec- tion 1.9.1 for additional scope provisions.
11. Public elementary and secondary schools, commu- nity college buildings, and state-owned or state- leased essential service buildings regulated by the Division of the State Architect. See Section 1.9.2 for additional scope provisions.
12. Reserved for the State Historical Building Safety Board with the Division of the State Architect.
DIVISION I CALIFORNIA ADMINISTRATION
13. General acute care hospitals, acute psychiatric hos- pitals, skilled nursing and/or intermediate care facil- ities, clinics licensed by the Department of Public Health, and correctional treatment centers regulated by the Department of Health Care Access and Infor- mation/Office of Statewide Hospital Planning and Development. See Section 1.10.0 for additional scope provisions.
14. Applications regulated by the Office of State Fire Marshal include but are not limited to following in accordance with Section 1.11.0:
1. Buildings or structures used or intended for use
as an:
1.1 Asylum, jail, prison.
1.2 Mental hospital, hospital, home for the eld- erly, children’s nursery, children’s home or institution, school or any similar occupancy of any capacity.
1.3. Theater, dancehall, skating rink, audito- rium, assembly hall, meeting hall, nightclub, fair building, or similar place of assemblage where 50 or more persons may gather together in a building, room or structure for the purpose of amusement, entertainment, instruction, delib- eration, worship, drinking or dining, awaiting transportation, or education.
1.4. Small family day care homes, large family day-care homes, residential facilities and resi- dential facilities for the elderly, residential care facilities.
1.5. State institutions or other state-owned or state-occupied buildings.
1.6. High rise structures.
1.7. Motion picture production studios.
1.8. Organized camps.
1.9. Residential structures.
2. Tents, awnings or other fabric enclosures used in connection with any occupancy.
3. Fire alarm devices, equipment and systems in connection with any occupancy.
4. Hazardous materials, flammable and com- bustible liquids.
5. Public school automatic fire detection, alarm and sprinkler systems.
6. Wildland-urban interface fire areas.
15. Section 1.12.0 is reserved for public libraries con- structed and renovated using funds from the Cali- fornia Library Construction and Renovation Bond Act of 1988 and regulated by the State Librarian.
16. Section 1.13.0 is reserved for the Department of Water Resources.
17. For applications listed in Section 1.9.1 regulated by the Division of the State Architect – Access Compli- ance, outdoor environments and uses shall be clas- sified according to accessibility uses described in Chapter 11A, and 11B.
18. Section 1.14.0 is reserved for Marine Oil Terminals regulated by the California State Lands Commission.
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