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Earlier editions: 20222019

Appendix I — INSTALLATION STANDARDS

10.4 Direct Burial — 2025 California Plumbing Code

California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-10-23 · 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) § 10.4 · Effective January 1, 2026 · Official source: Building Standards Commission

PEX tubing and fittings may be used in direct burial applications when allowed in the manufacturer’s written installation instructions.

IS 31

Note: AWWA C904 should be consulted for water service applications.

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

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