Adopted Building Codes – 2025 Edition
Effective Date: January 1, 2026
If you are an architect, engineer, designer, or contractor working in the State of California, please be advised that the 2025 edition of the California Building Standards Code (Title 24, CCR) took effect on January 1, 2026.
Important:
All permit applications submitted on or after January 1, 2026 must comply with the 2025 code set.