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Earlier editions: 20222019

Chapter 3 — GENERAL REGULATIONS

309.4 Installation Practices — 2025 California Plumbing Code

California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-10-19 · California

CBSC: official editions, supplements and errata

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

Cite as: 2025 California Plumbing Code (Title 24, Part 5) § 309.4 · Effective January 1, 2026 · Official source: Building Standards Commission

Plumbing systems shall be installed in a workmanlike manner which is in accordance with this code, applicable standards, and the manufacturer’s installation instructions. All materials shall be installed so as not to adversely affect the systems and equipment or the structure of the building, and in compliance with all laws and other provisions of this code. All plumbing systems shall be in accordance with construction documents approved by the Authority Having Jurisdiction.

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▸Contents — California Plumbing Code (Title 24, Part 5)
California Plumbing Code (Title 24, Part 5)

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