11B-215 Fire Alarm Systems and Carbon Monoxide Alarm Systems — 2025 California Building Code
California Building Code (Title 24, Part 2) · 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 Building Code (Title 24, Part 2) § 11B-215 · Effective January 1, 2026 · Official source: Building Standards Commission
11B- 215.1 General. Where fire alarm systems and carbon monoxide alarm systems provide audible alarm coverage, alarms shall comply with Section 11B- 215 .
Exception: In existing facilities, visible alarms for fire alarm systems shall not be required except where an existing fire alarm system is upgraded or replaced, or a new fire alarm system is installed.
11B- 215.2 Public and common use areas. Alarms in public use areas and common use areas shall comply with Chapter 9, Section 907.5.2.3.1.
11B- 215.3 Employee work areas. Where employee work areas have audible alarm coverage, the wiring system shall be designed so that visible alarms complying with Chapter 9, Section 907.5.2.3.1 Exception can be integrated into the alarm system.
11B- 215.4 Transient lodging. Guest rooms required to comply with Section 11B- 224.4 shall provide fire alarms complying with Chapter 9, Section 907.5.2.3.2, and carbon monoxide alarms, where provided, complying with Chapter 9, Section 915.
11B- 215.5 Residential facilities. Where provided in residential dwelling units required to comply with Section 11B- 809.5, fire alarms shall comply with Chapter 9, Section 907.5.2.3.3 and carbon monoxide alarms shall comply with Chapter 9, Section 915.
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