Pomona, CA Fire Regulations: Smoke Detectors (2026)

Sec. 74-134(l) sets the smoke-detector standard for work/live conversions: 'All work/live units shall be provided with smoke detectors. Smoke detectors shall receive their primary power from the building's wiring system and shall be provided with battery backup. ' Placement is specific rather than left to the installer's discretion: each work/live unit gets single-station smoke detectors mounted on the ceiling at a point centrally located in the residential portion of the unit and in each sleeping room, and the working area gets its own hardwired, centrally located ceiling detector; if the working area is subdivided into separate rooms, each workroom needs its own detector.

Sec. 74-134(m) adds a minimum one 2-A, 10-BC rated fire extinguisher per unit. Sec. 74-134(j) requires an automatic fire sprinkler system throughout the building when work/live units sit above the third story or in a basement, and Sec. 74-134(k) requires an approved manual and automatic fire alarm system for buildings three or more stories tall or with 16 or more work/live units, unless the building already has an approved, supervised sprinkler system with a local occupant-notification alarm. 11 and apply specifically to converted commercial or industrial buildings, not to conventional single-family or multifamily residences, which follow the smoke-alarm provisions of the adopted California Residential Code instead.