Appendix L — REQUIREMENTS FOR FIREFIGHTER AIR REPLENISHMENT SYSTEMS
2025 California Fire Code (Title 24, Part 9) · 2025 edition · updated 2026-07-27 · California
Italicized text is a California amendment to the model code, as printed in the official publication.
Sections in this part
The provisions contained in this appendix are not mandatory unless specifically referenced in the adopting ordinance or legislation of the jurisdiction.
User notes:
About this appendix: Appendix L provides for the design, installation and maintenance of permanently installed firefighter breathing air systems in buildings designated by the jurisdiction. Breathing air is critical for firefighting operations. Historically, fire departments have supplied air bottles by means of a “bottle brigade,” whereby firefighters manually transport air bottles up stairways, which is an extraordinarily firefighter-intensive process and takes firefighters away from their primary mission of rescue and firefighting. Technology now exists to address the issue using in-building air supply systems. Firefighter breathing air systems were introduced in the late 1980s and are now required in a number of communities throughout the United States. The system has been called a “standpipe for air” and consists of stainless steel, high-pressure piping that is supplied by on-site air storage or fire department air supply units. Air filling stations are then strategically located throughout the building, allowing firefighters to refill breathing air cylinders inside the fire building, negating the required “bottle brigade,” and making more firefighters available for search, rescue and fire suppression operations.
ICC code development note: Code change proposals to this appendix will be considered by the IFC Code Development Committee during the 2024 (Group A) Code Development Cycle.
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Ask AI about this code▸ Contents — 2025 California Fire Code (Title 24, Part 9)
- Chapter 1 — ADMINISTRATION
- Chapter 2 — DEFINITIONS
- Chapter 3 — GENERAL REQUIREMENTS
- Chapter 4 — EMERGENCY PLANNING AND PREPAREDNESS
- Chapter 5 — FIRE SERVICE FEATURES
- Chapter 6 — BUILDING SERVICES AND SYSTEMS
- Chapter 7 — FIRE AND SMOKE PROTECTION FEATURES
- Chapter 8 — INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHI…
- Chapter 9 — FIRE PROTECTION AND LIFE SAFETY SYSTEMS
- Chapter 10 — MEANS OF EGRESS
- Chapter 11 — CONSTRUCTION REQUIREMENTS FOR EXISTING BUILDINGS
- Chapter 12 — ENERGY SYSTEMS
- Chapter 20 — AVIATION FACILITIES
- Chapter 21 — DRY CLEANING
- Chapter 22 — COMBUSTIBLE DUST-PRODUCING OPERATIONS
- Chapter 23 — MOTOR FUEL-DISPENSING FACILITIES AND REPAIR GARAGES
- Chapter 24 — FLAMMABLE FINISHES
- Chapter 25 — FRUIT AND CROP RIPENING
- Chapter 26 — FUMIGATION AND INSECTICIDAL FOGGING
- Chapter 27 — SEMICONDUCTOR FABRICATION FACILITIES
- Chapter 28 — LUMBER YARDS AND AGRO-INDUSTRIAL, SOLID BIOMASS A…
- Chapter 29 — MANUFACTURE OF ORGANIC COATINGS
- Chapter 30 — INDUSTRIAL OVENS
- Chapter 31 — TENTS, TEMPORARY SPECIAL EVENT STRUCTURES AND OTH…
- Chapter 32 — HIGH-PILED COMBUSTIBLE STORAGE
- Chapter 33 — FIRE SAFETY DURING CONSTRUCTION AND DEMOLITION
- Chapter 34 — TIRE REBUILDING AND TIRE STORAGE
- Chapter 35 — WELDING AND OTHER HOT WORK
- Chapter 36 — MARINAS
- Chapter 37 — COMBUSTIBLE FIBERS
- Chapter 38 — RESERVED
- Chapter 39 — PROCESSING AND EXTRACTION FACILITIES
- Chapter 40 — STORAGE OF DISTILLED SPIRITS AND WINES
- Chapter 41 — TEMPORARY HEATING AND COOKING OPERATIONS
- Chapter 48 — MOTION PICTURE AND TELEVISION PRODUCTION STUDIO S…
- Chapter 49 — REQUIREMENTS FOR WILDLAND-URBAN INTERFACE FIRE AR…
- Chapter 50 — HAZARDOUS MATERIALS—GENERAL PROVISIONS
- Chapter 51 — AEROSOLS
- Chapter 52 — RESERVED
- Chapter 53 — COMPRESSED GASES
- Chapter 54 — CORROSIVE MATERIALS
- Chapter 55 — CRYOGENIC FLUIDS
- Chapter 56 — EXPLOSIVES AND FIREWORKS
- Chapter 57 — FLAMMABLE AND COMBUSTIBLE LIQUIDS
- Chapter 58 — FLAMMABLE GASES AND FLAMMABLE CRYOGENIC FLUIDS
- Chapter 59 — FLAMMABLE SOLIDS
- Chapter 60 — HIGHLY TOXIC AND TOXIC MATERIALS
- Chapter 61 — LIQUEFIED PETROLEUM GASES
- Chapter 62 — ORGANIC PEROXIDES
- Chapter 63 — OXIDIZERS, OXIDIZING GASES AND OXIDIZING CRYOGENI…
- Chapter 64 — PYROPHORIC MATERIALS
- Chapter 65 — PYROXYLIN (CELLULOSE NITRATE) PLASTICS
- Chapter 66 — UNSTABLE (REACTIVE) MATERIALS
- Chapter 67 — WATER-REACTIVE SOLIDS AND LIQUIDS
- Chapter 80 — REFERENCED STANDARDS
- Appendix Chapter 4 — SPECIAL DETAILED REQUIREMENTS BASED ON US…
- Appendix A — BOARD OF APPEALS
- Appendix B — FIRE-FLOW REQUIREMENTS FOR BUILDINGS
- Appendix BB — FIRE-FLOW REQUIREMENTS FOR BUILDINGS
- Appendix C — FIRE HYDRANT LOCATIONS AND DISTRIBUTION
- Appendix CC — FIRE HYDRANT LOCATIONS AND DISTRIBUTION
- Appendix D — FIRE APPARATUS ACCESS ROADS
- Appendix E — HAZARD CATEGORIES
- Appendix F — HAZARD RANKING
- Appendix G — CRYOGENIC FLUIDS—WEIGHT AND VOLUME EQUIVALENTS
- Appendix H — HAZARDOUS MATERIALS MANAGEMENT PLANS AND HAZARDOU…
- Appendix I — FIRE PROTECTION SYSTEMS—NONCOMPLIANT CONDITIONS
- Appendix J — BUILDING INFORMATION SIGN
- Appendix K — CONSTRUCTION REQUIREMENTS FOR EXISTING AMBULATORY…
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▸ Appendix L — REQUIREMENTS FOR FIREFIGHTER AIR REPLENISHMENT SY…
- Appendix M — HIGH-RISE BUILDINGS—RETROACTIVE AUTOMATIC SPRINKL…
- Appendix N — INDOOR TRADE SHOWS AND EXHIBITIONS
- Appendix O — VALET TRASH AND RECYCLING COLLECTION IN GROUP R-2…
- Appendix P — TEMPORARY HAUNTED HOUSES, GHOST WALKS AND SIMILAR…
- Appendix Q — COMMUNITY WILDLAND-URBAN INTERFACE (WUI) FIRE HAZ…