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Davis, CA Building Safety: Carbon Monoxide Detectors (2026)

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

Key Facts

Governing law
Davis Municipal Code Section 18.11.050(c)(1)
Parallel rule
Section 18.11.040(c)(1) for multifamily units
Trigger
Fossil-fuel heater, fireplace, or attached garage
Correction window
30 days after notice
Max fine
$200 per offense
Checked at
Move-in inspection

Summary

Before a tenant moves into a Davis rental home or apartment, the owner must install a carbon monoxide device in any unit with a fossil-fuel heater, fireplace, or attached garage. Skipping it, after a thirty-day correction notice, is an infraction carrying up to a two-hundred-dollar fine per offense.

Prior to the commencement of a tenancy of a single-family rental unit, an owner must install a carbon monoxide device in each existing dwelling unit having a fossil fuel burning heater or appliance, fireplace, or an attached garage. If an owner is found in violation of this section, the owner shall receive a thirty-day notice to correct. If the owner fails to correct within the time period, a violation of this section is an infraction punishable by a maximum fine of two hundred dollars for each offense.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4915048; v22 updated 2026-05-19).

Full Breakdown

11, which applies separately to registered single-family rental units and multifamily rental units. 040(c)(1) imposes the identical requirement on multifamily rental unit owners. The same subsections require a smoke alarm in every unit, with tenants responsible for reporting an inoperable one and owners responsible for correcting it, entering with twenty-four-hour notice except in an emergency. If an owner is found in violation of the carbon monoxide requirement, the city issues a thirty-day notice to correct before any penalty attaches; only a failure to fix the problem within that window becomes a chargeable infraction. 130 and applies current building code standards for installation and location rather than the fossil-fuel-source trigger used for rentals. 050(e).

Violations & Fines

Failing to install a required carbon monoxide device, after a thirty-day notice to correct goes unaddressed, is an infraction under Sections 18.11.040(c)(1) and 18.11.050(c)(1) punishable by a maximum fine of two hundred dollars for each offense. The same two-hundred-dollar per-offense cap applies to an owner's failure to correct a reported deficient smoke alarm once notified.

Frequently Asked Questions

Does Davis require carbon monoxide detectors in rental housing?
Yes. Before a tenancy starts, Davis Municipal Code Sections 18.11.040(c)(1) and 18.11.050(c)(1) require owners of registered multifamily and single-family rental units to install a carbon monoxide device in any existing unit with a fossil-fuel-burning heater or appliance, a fireplace, or an attached garage.
What happens if a Davis landlord skips the carbon monoxide device?
The owner first gets a thirty-day notice to correct the violation. If the device still is not installed after that window, it becomes an infraction under Section 18.11.050(c)(1), or the parallel multifamily section, punishable by a maximum fine of two hundred dollars for each offense.
Is the carbon monoxide rule the same for a home sale in Davis?
No. The rental rule in Article 18.11 is triggered by a fossil-fuel heater, fireplace, or attached garage and applies before every new tenancy. A separate resale rule, Section 8.10.130, instead requires compliance with current building code alarm standards only when a covered unit changes ownership.

Sources & Official References

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