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California Residential Code 2025
The California Residential Code (CRC) covers construction standards for one- and two-family dwellings and townhouses up to three stories. It is fully integrated with the 2024 International Residential Code® (Chapters 2–10). California amendments align the code with state laws and unique local conditions. Energy, Mechanical, Plumbing, and Electrical standards are located in other parts of Title 24. Includes free state updates and supplements.
Effective: January 1, 2026.