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Earlier editions: 20222019

Chapter 64 — PYROPHORIC MATERIALS

6405 Use — 2025 California Fire Code

California Fire Code (Title 24, Part 9) · 2025 edition · updated 2026-09-25 · 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 Fire Code (Title 24, Part 9) § 6405 · Effective January 1, 2026 · Official source: Building Standards Commission

6405.1 General.

The use of pyrophoric materials in amounts exceeding the maximum allowable quantity per control area indicated in Table 5003.1.1(1) or 5003.1.1(3) shall be in accordance with Sections 5001, 5003, 5005 and this chapter.

Exceptions & meaning →

6405.2 Weather protection.

Where overhead construction is provided for sheltering of outdoor use areas of pyrophoric materials, the use areas shall be provided with approved automatic fire-extinguishing system protection.

Exceptions & meaning →

6405.3 Silane gas.

The use of silane gas, and gas mixtures with a silane concentration of 1.37 percent or more by volume, shall be in accordance with ANSI/CGA G-13.

64-4 2025 CALIFORNIA FIRE CODE

CALIFORNIA FIRE CODE – MATRIX ADOPTION TABLE CHAPTER 65 – PYROXYLIN (CELLULOSE NITRATE) PLASTICS

(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

Adopting Agency BSC BSC-
CG
SFM HCD DSA OSHPD BSCC DPH AGR DWR CEC CA SL SLC
Adopting Agency BSC BSC-
CG
T-24 T-19* 1 2 1/AC AC SS 1 1R 2 3 4 5 5 5 5 5 5 5 5 5
Adopt Entire Chapter X
Adopt Entire Chapter as
amended (amended sections
listed below)
Adopt only those sections that
are listed below
[California Code of Regulations,
Title 19, Division 1]
Chapter / Section
  • The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Fire Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same. The state agency does not adopt sections identified by the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.

65-2 2025 CALIFORNIA FIRE CODE

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