The California Carbon Monoxide Poisoning Prevention Act of 2010 (HSC 17926-17926.2) requires carbon monoxide alarms in every dwelling unit with a fuel-burning appliance, fireplace, or attached garage. In Concord, CO alarms must be installed outside each sleeping area and on every floor including basements, be State Fire Marshal listed, and comply with California Residential Code R315 installation standards. Sellers must certify compliance.
The Carbon Monoxide Poisoning Prevention Act of 2010, codified at California Health and Safety Code 17926 through 17926.2, requires every single-family dwelling, condominium, townhouse, duplex, multifamily building, and other existing dwelling to have carbon monoxide (CO) alarms installed if the unit has a fossil-fuel burning heater or appliance (gas furnace, gas water heater, gas range or oven, gas fireplace, wood stove), a fireplace, or an attached garage. Alarms must be installed outside each sleeping area in the immediate vicinity of the bedrooms, and on every level of the dwelling including basements. CO alarms must be listed by the California State Fire Marshal (CSFM) under HSC 13263, must comply with UL 2034 standards, and may be battery-powered, plug-in with battery backup, hardwired, or combination smoke/CO alarms. For new construction and permitted alterations, California Residential Code R315 requires hardwired and interconnected alarms with battery backup. HSC 17926(d) requires owners of single-family dwellings to install alarms in compliance with the manufacturer's instructions, and HSC 17926.1 extends the requirement to all other dwelling intended for human occupancy. HSC 17926.2 requires sellers to disclose to buyers whether the property contains the required CO alarms. Landlords must test and maintain alarms at tenant turnover under HSC 17926(d). Violations are infractions punishable by a maximum $200 fine after a 30-day cure notice. CO alarms typically have a 5-10 year service life and must be replaced per manufacturer recommendations. Concord Code Enforcement and Contra Costa Fire Protection District enforce the requirements, and failure to maintain CO alarms can contribute to liability in poisoning cases.
Contact your local code enforcement office for specific penalty information.
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