Madera County, CA Fire Regulations: Smoke Detectors (2026)

Smoke alarm requirements in unincorporated Madera County come from California state law rather than a unique county chapter. Under Health & Safety Code section 13113.7, smoke alarms approved and listed by the State Fire Marshal must be installed, per manufacturer instructions, in every dwelling unit intended for human occupancy, including single-family homes, duplexes, apartments, condominiums, hotels, motels and factory-built housing. For dwelling units where a building permit is issued on or after January 1, 2014 for alterations, repairs or additions exceeding $1,000, smoke alarms meeting current building standards must be in place before final permit sign-off. Owners of rented single-family dwellings must ensure smoke alarms are operable at the time a new tenancy is created, and owners of multi-unit rentals were required by January 1, 2016 to add alarms as needed to meet current building-code placement. The California Building/Residential Code generally requires alarms in each sleeping room, outside each sleeping area, and on every level. Separately, the Carbon Monoxide Poisoning Prevention Act of 2010 (Health & Safety Code section 13260 et seq.) requires State Fire Marshal-approved carbon monoxide alarms in dwellings with fossil-fuel appliances, fireplaces or attached garages. These statewide standards are enforced through Madera County's building and fire-prevention process under county code Title 14.