Phoenix, AZ Building Safety: Carbon Monoxide Detectors (2026)
Key Facts
- Applies to
- Short-term/vacation rentals only
- Standard required
- NFPA 72 detection system
- Also required
- Portable fire extinguisher
- Disclosed at permitting
- Detector locations on application
- Enforcement
- Neighborhood Services Dept. inspections
Summary
Phoenix requires every short-term rental to maintain a working smoke and carbon monoxide detection system that meets NFPA 72 before it can be rented.
To ensure the health and safety of the short-term rental occupants and the public, the short-term rental must have the following safety equipment: 1. A working smoke and carbon monoxide detection and notification system must be maintained as required under NFPA 72.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance G-7524, passed June 17, 2026).
Full Breakdown
Under City Code § 10-205, short-term rental owners must equip the property with a working smoke and carbon monoxide detection and notification system maintained to NFPA 72 standards, plus a portable fire extinguisher in the kitchen and any area with an open flame source. Applicants must also submit a written description or map showing the detectors' locations with their permit application under § 10-197. The Neighborhood Services Department may inspect for compliance. Outside the short-term rental program, Phoenix's general Neighborhood Preservation Ordinance requires only smoke detectors in dwellings (§ 39-5.A): it does not separately mandate carbon monoxide detectors.
Violations & Fines
Renting without the required smoke/CO detection system is a short-term rental standards violation, enforceable through the same civil sanctions as other STR violations under § 10-206 (escalating fines starting at one night's rent, up to $500, for a first offense within 12 months).
Frequently Asked Questions
Does Phoenix require carbon monoxide detectors in all homes?
What CO detector standard must a Phoenix short-term rental meet?
Sources & Official References
Other rules in Phoenix
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