Smoke Detectors: Ontario vs Rancho Cucamonga
How do smoke detectors rules compare between Ontario, CA and Rancho Cucamonga, CA?
Rancho Cucamonga has fewer restrictions than Ontario.
Ontario, CA
San Bernardino County
Ontario enforces California H and S 13113.7 requiring smoke alarms in every bedroom, outside sleeping areas, and on every floor. 10-year sealed-battery or hardwired units are required on replacement.
View full Ontario rules →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 →Key Facts Comparison
| Fact | Ontario | Rancho Cucamonga |
|---|---|---|
| State authority | CA H and S 13113.7 | - |
| Required locations | Each bedroom, hallway, every floor | Every bedroom, outside sleep area, every story |
| Alarm type | 10-year sealed or hardwired backup | - |
| Rental rule | Test before each new tenancy | - |
| Retrofit trigger | Work over 1,000 dollars | - |
| 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 |
Highlighted rows indicate differences between cities.
Ontario FAQ
Do I need hardwired alarms in an older Ontario house?
Homes built before 1992 can generally use 10-year sealed battery alarms, but hardwired alarms with battery backup are required when a permit for significant work is issued.
Who is responsible for alarms in a rental home?
The landlord must install, test, and maintain alarms and verify they work before each new tenant moves in under California Civil Code 1941.1.
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.
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