Smoke Detectors: Rancho Cucamonga vs San Bernardino
How do smoke detectors rules compare between Rancho Cucamonga, CA and San Bernardino, CA?
Rancho Cucamonga has fewer restrictions than San Bernardino.
Rancho Cucamonga, CA
San Bernardino County
All Rancho Cucamonga residences must have working smoke alarms in each bedroom, outside sleeping areas, and on every level. Sales and rentals require compliant sealed 10-year battery or hardwired alarms.
View full Rancho Cucamonga rules →San Bernardino, CA
San Bernardino County
San Bernardino dwellings must have working smoke alarms in every sleeping room and on every level under CA H&S 13113.7, plus CO alarms in homes with fuel appliances or attached garages.
View full San Bernardino rules →Key Facts Comparison
| Fact | Rancho Cucamonga | San Bernardino |
|---|---|---|
| Required locations | Every bedroom, outside sleep area, every story | - |
| New construction | Hardwired, interconnected, battery backup | - |
| Existing homes | 10-year sealed battery alarms per SB 745 | - |
| Carbon monoxide | Required per H and S Code 17926 | - |
| Real estate transfer | Compliance certificate required at sale | - |
| Smoke alarm law | - | CA H&S 13113.7 requires alarms in every bedroom and level |
| CO alarm law | - | CA H&S 13262 requires CO alarms when fuel appliance or attached garage |
| Battery rule | - | Replacement alarms must be 10-year sealed battery units |
| Sale or remodel | - | Alarms must be upgraded to current code at transfer or major remodel |
| Habitability | - | Missing alarms are a rental defect under Civil Code 1941.1 |
Highlighted rows indicate differences between cities.
Rancho Cucamonga FAQ
Can I use 9-volt battery smoke alarms in my Rancho Cucamonga home?
Existing 9-volt alarms may remain, but any replacement must be a 10-year sealed lithium battery model per SB 745.
Do landlords have to install alarms in Rancho Cucamonga rentals?
Yes. Landlords must install, test, and document working alarms at every tenant turnover under California law.
Does RCFPD offer free smoke detectors?
Yes, through their community outreach program for qualifying seniors, disabled residents, and low-income households. Call (909) 477-2770.
San Bernardino FAQ
Where exactly must my smoke alarms be?
Inside every bedroom, outside each sleeping area in the hallway, and on every level of the home including basements.
Do I need a CO alarm?
Yes if your home has any gas appliance, wood fireplace, or attached garage, under California Health and Safety Code 13262.
Can I still use 9-volt battery alarms?
Existing units remain legal, but any replacement in California must be a listed 10-year sealed battery alarm.
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