California’s Carbon Monoxide (CO) Safety Law

                The following is a summary of California’s new Carbon Monoxide (CO) safety law*


New Construction – Required beginning January 1, 2011

  • Residential (CA Residential Code, 2010) – All newly constructed detached one and two-family dwellings and townhomes not more than three stories in height that contain fuel burning appliances or an attached garage.  Also, when such an existing dwelling requires a permit for alterations, repairs or additions exceeding $1,000.00.
  • Commerical (CA Building Code, 2010) – Group homes, assisted living facilities housing more than 16 people in a supervised environment who are capable of responding to an emergency.  Also includes hotels, boarding houses, apartments, dormitories, adult and child day care facilities.


Existing Homes – Single Family Dwellings – Required beginning July 1, 2011 and Multi-Family Dwellings – Required beginning January 1, 2013

  • Any single-family dwelling, duplex, lodging house, private dormitory, hotel, motel, condominium, time-share, or mutiple unit dwelling that contains a fossil-fuel burning heater, appliance, fireplace, or attached garage.


Approved Alarms

  • New Construction – Must be hardwired with battery backup and interconnected
  • Existing Homes – May be battery operated, plug-in with battery backup or hardwired with battery backup



  • Carbon Monoxide (CO) alarms must be installed outside each separate sleeping area in the immediate vicinity and on every level.


Contact Us

For installation of one (1) or multiple Carbon Monoxide Detectors, please contact us via the form below:


  1. (required)
  2. (valid email required)
  3. (required)


*Note: This information is a summary/interpretation of California law SB 183, Chapter #19, 2010; 2010 Edition of the California Residential Code, Section 315; 2010 Edition of the California Building Code, Section 420 and was intended as general reference ONLY.  For specific compliance requirements, please refer to the actual law/regulation.




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