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Los Angeles County, CA Building Safety: Carbon Monoxide Detectors (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Governing section
LACC § 7.96.070.F (Host Requirements)
Enforcing agency
LA County Treasurer and Tax Collector
Max fine
$2,000/violation/day or 2x nightly rate
Noncompliance fee
$285 per notice
Cure period
10 days to fix and avoid fine
Scope
Unincorporated LA County STR units only
Adopting ordinance
Ord. 2024-0015 (2024)

Summary

Hosts operating a Short-Term Rental in unincorporated Los Angeles County must provide and maintain working smoke detectors and carbon monoxide detectors on the premises under County Code § 7.96.070.F. The rule applies only to registered STR units outside incorporated cities; the Tax Collector enforces it and can fine hosts up to $2,000 per violation per day for noncompliance.

City-specific rules exist: Glendale, Los Angeles, Pasadena, and Inglewood have their own carbon monoxide detectors rules that differ from Los Angeles County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

F.The Host must provide and maintain in working condition smoke detectors, carbon monoxide detectors, and flashlights on the premises of the Short-Term Rentals unit. G.The Host must provide and maintain adequate and readily accessible fire extinguishers maintained in proper working order. Each fire extinguisher must carry a suitable tag showing the date of the most recent inspection.

Full Breakdown

070 of the Los Angeles County Code, part of the Short-Term Rentals Registration Ordinance adopted by Ord. 2024-0015 in 2024, sets Host Requirements for any Short-Term Rental operating in the county's unincorporated areas. Subsection F states the Host must provide and maintain in working condition smoke detectors, carbon monoxide detectors, and flashlights on the premises of the Short-Term Rentals unit. Subsection G adds a parallel duty to provide and maintain adequate and readily accessible fire extinguishers, each carrying a tag showing the date of its most recent inspection.

Subsection A separately obligates the Host to immediately remediate any violation of the Chapter, so a missing or dead detector is not a passive finding, it must be fixed without delay. H, which requires evacuation routes and fire-extinguisher locations to be posted where guests can see them. B. 100, can draw an administrative fine of up to $2,000 per violation per day, or twice the average nightly rate charged, whichever is greater. N. 120. This detector mandate is specific to registered STR units; it does not apply to hotels, long-term rentals, or dwellings in the 88 incorporated cities within the county, each of which enforces its own municipal code.

Violations & Fines

Failing to maintain working smoke and carbon monoxide detectors is a Host violation under § 7.96.070.F, enforced by the Tax Collector. Under § 7.96.110.L.2, the County may impose an administrative fine of up to $2,000 per violation per day, or twice the average nightly rate, whichever is greater, plus a $285 noncompliance fee under § 7.96.110.N. The Tax Collector may also suspend or revoke the Registration Certificate under § 7.96.110.B, and a fine is waived only if the violation is cured within ten days under § 7.96.110.M.

Frequently Asked Questions

Does Los Angeles County require carbon monoxide detectors in short-term rentals?
Yes. County Code § 7.96.070.F requires every Host operating a registered Short-Term Rental in unincorporated LA County to provide and maintain working smoke detectors, carbon monoxide detectors, and flashlights on the premises, in addition to inspected fire extinguishers under § 7.96.070.G.
What happens if a short-term rental host doesn't have working detectors?
The Tax Collector can issue a notice of noncompliance and fine the Host up to $2,000 per violation per day, or twice the nightly rate, under § 7.96.110.L.2, plus a $285 noncompliance fee, unless the Host cures the defect within ten days under § 7.96.110.M.
Does this detector rule apply inside the City of Los Angeles?
No. Chapter 7.96 governs only Short-Term Rentals in the unincorporated areas of Los Angeles County; the City of Los Angeles and the county's other 87 incorporated cities enforce their own municipal codes and short-term rental rules.
Who enforces the smoke and CO detector requirement?
The Los Angeles County Treasurer and Tax Collector administers and enforces Chapter 7.96, including investigating complaints under § 7.96.100 and suspending or revoking a Registration Certificate for noncompliance under § 7.96.110.B.

Sources & Official References

Other rules in Los Angeles County

All Los Angeles County rules

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