Chapter 14 — FIRESTOP PROTECTION
1406.4 Field Installations — 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) § 1406.4 · Effective January 1, 2026 · Official source: Building Standards Commission
The Authority Having Jurisdiction shall compare the field installations with the documentation supplied by the installer to determine the following:
(1) The required F ratings (1 hour, 2 hour, 3 hour, or 4 hour) and T ratings (0 hour, 1 hour, 2 hour, 3 hour, or 4 hour) of the penetration firestop systems are at least the same as the hourly rating of the assembly being penetrated.
(2) The penetrating firestop system includes the penetrating item as documented through testing of the systems conducted by an independent testing agency.
(3) The penetrating firestop system is installed as tested.
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