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Appendix L — REQUIREMENTS FOR FIREFIGHTER AIR REPLENISHMENT SYSTEMS

L101 General — 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) § L101 · Effective January 1, 2026 · Official source: Building Standards Commission

L101.1 Scope.

Firefighter air replenishment systems (FARS) shall be provided in accordance with this appendix. The adopting ordinance shall specify building characteristics or special hazards that establish thresholds triggering a requirement for the installation of a FARS. The requirement shall be based on the fire department’s capability of replenishing firefighter breathing air during sustained emergency operations. Considerations shall include:

  1. Building characteristics, such as number of stories above or below grade plane, floor area, type of construction and fireresistance of the primary structural frame to allow sustained firefighting operations based on a rating of not less than 2 hours.

  2. Special hazards, other than buildings, that require unique accommodations to allow the fire department to replenish firefighter breathing air.

  3. Fire department staffing level.

  4. Availability of a fire department breathing air replenishment vehicle.

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▸Contents — California Fire Code (Title 24, Part 9)
California Fire Code (Title 24, Part 9)

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