What building code does California use?
California currently enforces California Building Code (Title 24, Part 2), 2025 edition (statewide 2025 code cycle). Cities and counties in California may adopt local amendments.
Adopted codes — 2025 cycle
| Scope | Code | Edition |
|---|---|---|
| Building | California Building Code (Title 24, Part 2) | 2025 |
| Residential | California Residential Code (Title 24, Part 2.5) | 2025 |
| Fire | California Fire Code (Title 24, Part 9) | 2025 |
| Energy | California Energy Code (Title 24, Part 6) | 2025 |
| Existing Building | California Existing Building Code (Title 24, Part 10) | 2025 |
| Wildland-Urban Interface | California Wildland-Urban Interface Code | 2025 |
| Administrative | California Administrative Code (Title 24, Part 1) | 2025 |
| Green Building | California Green Building Standards Code — CALGreen (Title 24, Part 11) | 2025 |
| Historical Building | California Historical Building Code (Title 24, Part 8) | 2025 |
| Referenced Standards | California Referenced Standards Code (Title 24, Part 12) | 2025 |
Other active cycles
California lists more than one active cycle with ICC — projects may be permitted under either depending on submission date and local adoption.
2022 cycle (also active)
| Scope | Code | Edition |
|---|---|---|
| Building | California Building Code (Title 24, Part 2) | 2022 |
| Residential | California Residential Code (Title 24, Part 2.5) | 2022 |
| Fire | California Fire Code (Title 24, Part 9) | 2022 |
| Energy | California Energy Code (Title 24, Part 6) | 2022 |
| Existing Building | California Existing Building Code (Title 24, Part 10) | 2022 |
| Administrative | California Administrative Code (Title 24, Part 1) | 2022 |
| Green Building | California Green Building Standards Code — CALGreen (Title 24, Part 11) | 2022 |
| Historical Building | California Historical Building Code (Title 24, Part 8) | 2022 |
| Referenced Standards | California Referenced Standards Code (Title 24, Part 12) | 2022 |
Get this data as JSON
curl https://codes.submittal.app/api/v1/states/california.jsonEvery page on this site is backed by the open building-codes dataset (CC BY 4.0). Source: ICC code-adoption records, retrieved 2026-04-28.