when were carbon monoxide detectors required in california
Carbon monoxide detector In July 2011, California required installation of carbon monoxide detectors in existing single-family homes, with multifamily homes following in 2013.[20] CA Law 2015 require all new installation of smoke and CO alarms to be 10 year non serviceable type.[21] Existing alarms may not need to be replaced for home owners, see local codes. Required alarm location also vary per local enforcing agencies.