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California Plumbing Code 2025
The California Plumbing Code (CPC) sets minimum standards for the design, installation, and maintenance of plumbing systems to protect health, safety, and property. It regulates materials, construction, and system performance for all plumbing installations. This fully integrated code is based on the 2024 Uniform Plumbing Code® and includes free state updates and supplements.
Effective: January 1, 2026.