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Chapter 1 — SCOPE AND APPLICATION

Section 1.8.3

California Residential Code (Title 24, Part 2.5) · 2022 edition · updated 2026-09-12 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

LOCAL ENFORCING AGENCY 1.8.3.1 Duties and powers. The building department of every city, county, or city and county shall enforce all the provisions of law, this code, and the other rules and regulations promul- gated by the Department of Housing and Community Develop- ment pertaining to the installation, erection, construction, reconstruction, movement, enlargement, conversion, alter- ation, repair, removal, demolition or arrangement of apart- ments, condominiums, hotels, motels, lodging houses and dwellings, including accessory buildings, facilities and uses thereto.

The provisions regulating the erection and construction of dwellings and appurtenant structures shall not apply to exist- ing structures as to which construction is commenced or approved prior to the effective date of these regulations. Requirements relating to use, maintenance and occupancy shall apply to all dwellings and appurtenant structures approved for construction or constructed before or after the effective date of this code.

For additional information regarding the use and occu- pancy of existing buildings and appurtenant structures, see California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 1, commencing with Article 1, Section 1.

For additional requirements regarding additions, alter- ations or repairs to existing buildings and appurtenant struc- tures, see the California Existing Building Code.

1.8.3.2 Laws, rules and regulations. Other than the building standards contained in this code, and notwithstanding other provisions of law, the statutory authority and location of the laws, rules and regulations to be enforced by local enforcing agencies are listed by statute in Sections 1.8.3.2.1 through 1.8.3.2.5 below:

1.8.3.2.1 State Housing Law. Refer to the State Housing Law, California Health and Safety Code, Division 13, Part 1.5, commencing with Section 17910 and California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 1, commencing with Section 1, for the erection, construction, reconstruction, movement, enlargement, conversion, alter- ation, repair, removal, demolition or arrangement of apart- ments, condominiums, hotels, motels, lodging houses and dwellings, including accessory buildings, facilities and uses thereto.

1.8.3.2.2 Mobilehome Parks Act. Refer to the Mobilehome Parks Act, California Health and Safety Code, Division 13, Part 2.1, commencing with Section 18200 and California Code of Regulations, Title 25, Division 1, Chapter 2, com- mencing with Section 1000 for mobilehome park adminis- trative and enforcement authority, permits, plans, fees, violations, inspections and penalties both within and out- side mobilehome parks.

DIVISION I CALIFORNIA ADMINISTRATION

Exception: Mobilehome parks where the Department of Housing and Community Development is the enforc- ing agency. 1.8.3.2.3 Special Occupancy Parks Act. Refer to the Spe- cial Occupancy Parks Act, California Health and Safety Code, Division 13, Part 2.3, commencing with Section 18860 and California Code of Regulations, Title 25, Divi- sion 1, Chapter 2.2, commencing with Section 2000 for special occupancy park administrative and enforcement authority, permits, fees, violations, inspections and penal- ties both within and outside of special occupancy parks.

Exception: Special occupancy parks where the Depart- ment of Housing and Community Development is the enforcing agency. 1.8.3.2.4 Employee Housing Act. Refer to the Employee Housing Act, California Health and Safety Code, Division 13, Part 1, commencing with Section 17000 and Califor- nia Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 3, commencing with Section 600 for employee housing administrative and enforcement authority, per- mits, fees, violations, inspections and penalties.

1.8.3.2.5 Factory-Built Housing Law. Refer to the Fac- tory-Built Housing Law, California Health and Safety Code, Division 13, Part 6, commencing with Section 19960 and California Code of Regulations, Title 25, Divi- sion 1, Chapter 3, Subchapter 1, commencing with Section 3000 for factory-built housing administrative and enforce- ment authority, permits, fees, violations, inspections and penalties.

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▸Contents — California Residential Code (Title 24, Part 2.5)
California Residential Code (Title 24, Part 2.5)
  1. Chapter 2 — DEFINITIONS AND ABBREVIATIONS
  2. Appendix AF — RADON CONTROL
  3. Appendix AI — PRIVATE SEWAGE
  4. Appendix AJ — EXISTING
  5. Appendix AK — SOUND
  6. Appendix AO — AUTOMATIC
  7. Appendix AR — LIGHT STRAW-CLAY
  8. Appendix AS — STRAWBALE
  9. Appendix AU — COB CONSTRUCTION
  10. Appendix AV — BOARD
  11. Appendix AW — 3D-PRINTED BUILDING
  12. ▸Chapter 1 — SCOPE AND APPLICATION
    Overview
    1. Section 1.2
    2. Section 1.3
    3. Section 1.4
    4. Section 1.5
    5. Section 1.6
    6. Section 1.7
    7. Section 1.8
    8. Section 1.8.2
    9. Section 1.8.3
    10. Section 1.8.4
    11. Section 1.8.5
    12. Section 1.8.6
    13. Section 1.8.7
    14. Section 1.8.8
    15. Section 1.8.9
    16. Section 1.8.10
    17. Section 1.9
    18. Section 1.10
    19. Section 1.11
    20. Section 1.12
    21. Section 1.13
    22. Section 1.14
    23. Section R101
    24. Section R102
    25. Section R103
    26. Section R104
    27. Section R105
    28. Section R106
    29. Section R107
    30. Section R108
    31. Section R109
    32. Section R110
    33. Section R111
    34. Section R112
    35. Section R113
    36. Section R114
    37. Section R201
    38. Section R202
  13. Chapter 3 — BUILDING PLANNING
  14. Chapter 4 — FOUNDATIONS
  15. Chapter 5 — FLOORS
  16. Chapter 6 — WALL CONSTRUCTION
  17. Chapter 7 — WALL COVERING
  18. Chapter 8 — ROOF-CEILING CONSTRUCTION
  19. Chapter 9 — ROOF ASSEMBLIES
  20. Chapter 10 — CHIMNEYS AND FIREPLACES
  21. Chapter 44 — REFERENCED STANDARDS
  22. Appendix AH — PATIO COVERS
  23. Appendix AL — PERMIT FEES
  24. Appendix AQ — TINY HOUSES
  25. Appendix AT — SOLAR-READY PROVISIONS—DETACHED ONE- AND
  26. Appendix AX — SWIMMING POOL SAFETY ACT
  27. Appendix AY — AREAS PROTECTED BY THE FACILITIES
  28. Appendix AZ — EMERGENCY HOUSING

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