Utah CO Detector Requirements for Hotels and Short-Term Rentals
Utah bars its own cities from enforcing a carbon monoxide ordinance against anybody but the occupant. Utah Code 10-8-53.5 and 17-50-327 stop a municipality or county enforcing a carbon monoxide detector ordinance against anyone other than the occupant of a residential dwelling, carving out new-construction building permits, so a city can write the rule and then has little left to enforce it against. Utah hotel carbon monoxide detector duties come from the state instead, through the Utah State Construction and Fire Codes Act at Title 15A. New construction runs on Section 908.7 of the adopted building code, and Utah Code 15A-5-205.5 rewrites fire code Section 1103.9 for a building already standing.
Last verified: August 24, 2026
Key Takeaways
- The section number is 908.7 rather than 915, so a search built around Section 915 comes back empty and proves nothing about Utah.
- Existing buildings run on a rewritten section. Utah Code 15A-5-205.5 rewrites International Fire Code Section 1103.9 to require detection in covered Group R occupancies, including residential rental units with fuel-burning appliances, and that is the route a short-term rental operating as a Group R-2 or R-3 occupancy takes.
- No separate statewide fine schedule exists for carbon monoxide non-compliance. Enforcement runs through the code administration process under Title 15A, with the State Fire Marshal Division and local code officials.
- Ogden wrote a full ordinance of its own and pointed it in two directions at once. Title 12 Chapter 17 runs to seven sections; Section 12-17-3(A) reaches all existing residential occupancies and dwellings that contain fuel-fired appliances or have attached garages; subsection (B) makes the owner install, maintain, test, replace batteries and immediately repair or replace a defective detector; and subsection (C) hands that same list of duties to the occupant of any dwelling built before 2005. The two are cumulative rather than alternative, and the Fit Premises Act settles it without any conflict-of-laws analysis. Subsection (B) is not limited by build date, so on a pre-2005 dwelling it binds the owner while (C) binds the occupant. Utah Code 57-22-3(1) then requires an owner to maintain a residential rental unit fit for human habitation "in accordance with local ordinances and the rules of the board of health having jurisdiction", which folds Ogden's rule into the owner's own statutory duty rather than setting the two against each other. The only route that moves a duty off the owner is 57-22-3(4), under which any duty in the act "may be allocated to a different party by explicit written agreement signed by the parties". A city ordinance is not that agreement. So an occupant-directed subsection adds a duty to the tenant without subtracting one from the owner. No Utah decision applying 12-17-3(C) was found, so this reads the two instruments rather than reporting a holding on them.
- Salt Lake City trades a dimension for the detectors. Section 18.50.180 lets a corridor ceiling drop to six feet four inches, below the ordinary minimum, on condition that a smoke detector and a carbon monoxide detector go in under the construction codes the city adopts. It is a permission rather than a duty, and buying detection with a dimensional allowance is an unusual way to arrive at it.
- The state provisions in the first sentence carry a source caveat. The Utah legislature's own site refuses connections from the network used here and the archived legislature pages are JavaScript shells, so Utah Code 10-8-53.5 and 17-50-327 are restated from an earlier verified reading rather than re-read from a primary source. Read the sections before acting on the point.
Legal Summary
Utah does not have a standalone carbon monoxide detector statute for hotels or short-term rentals. Instead, CO detection requirements flow through the Utah State Construction and Fire Codes Act, Utah Code Title 15A, which adopts and amends the International Building Code (IBC) and International Fire Code (IFC). For new construction hotels, motels, and lodging (Group R-1 occupancies), IBC Section 908.7, adopted via Utah Code § 15A-3, requires CO alarms when fuel-burning appliances or attached garages are present. For existing buildings, Utah Code § 15A-5-205.5 rewrites IFC Section 1103.9 to require CO detection in covered Group R occupancies, including residential rental units with fuel-burning appliances. Short-term rentals operating as residential occupancies (Group R-2, R-3) are covered through this existing-building pathway. The Utah State Fire Marshal Division and local code officials enforce these provisions. There is no separate statewide fine schedule specific to CO detector noncompliance; enforcement is handled through the code administration process under Title 15A.
Who Is Covered
Utah Code Title 15A covers CO detection across several occupancy categories:
Hotels and motels (Group R-1): CO alarms are required for new construction under IBC § 908.7 when fuel-burning appliances or attached garages are present. For existing hotels, the amended IFC § 1103.9 framework under Utah Code § 15A-5-205.5 applies to covered Group R occupancies.
Short-term rentals and vacation rentals: STRs operating as residential occupancies, including those classified as Group R-2 (apartments, vacation rental complexes) or Group R-3 (single-family, townhouse rentals), are covered under the existing-building Group R pathway.
Residential rental units: Owners and lessors of rental dwelling units with fuel-burning appliances are subject to the IFC 1103.9 requirements for existing Group R occupancies under Utah Code § 15A-5-205.5.
Hotels already standing: covered too. The Utah requirement reaches an existing hotel and not only one being built.
Operator Responsibilities
Under Utah Code Title 15A's adoption of IBC Section 908.7 and amended IFC Section 1103.9, the owner or operator of a covered lodging property or rental unit is responsible for ensuring CO detection is installed and maintained as required.
New construction hotels and lodging (Group R-1): Where IBC § 908.7 applies, CO alarms must be installed in sleeping units that contain, or are served by, fuel-burning appliances or systems, or that are in buildings with attached parking garages. CO detection must receive primary power from building wiring with battery backup.
Existing buildings (Group R occupancies): For properties covered by Utah's amended IFC § 1103.9, CO alarms must be installed on each habitable level of covered dwelling units and sleeping units equipped with fuel-burning appliances. Alarms must meet the NFPA 720 and UL 2034 standards referenced in the code.
Maintenance: Under the general enforcement framework of Utah Code Title 15A, operators are responsible for maintaining CO alarms in working condition. Carbon monoxide detectors that become inoperable or begin producing end-of-life signals must be replaced.
Documentation: Utah Code does not specify a mandatory written maintenance log, but operators should document inspection and replacement records as evidence of compliance during fire marshal or building official reviews.
Trigger verification: Before each rental occupancy, operators should confirm whether the property has fuel-burning appliances, forced-air furnaces, attached garages, or other combustion sources that trigger the CO detection requirement.
Installation and Technical Requirements
Utah's CO alarm requirements are governed by IFC Section 915 and IBC Section 908.7 as adopted and amended under Utah Code Title 15A. The applicable technical standards are:
Standards: CO alarms must meet the requirements listed in NFPA 720, Installation of Carbon Monoxide Detection and Warning Equipment, and UL 2034, Standard for Single and Multiple Station Carbon Monoxide Alarms.
Placement: CO alarms must be installed on each habitable level of a covered dwelling unit or sleeping unit, including the basement. For sleeping units, placement should be in the immediate vicinity of sleeping areas in accordance with NFPA 720 § 9.4.1.1.
Power source: For new construction, CO detectors must receive primary power from building wiring (IFC § 915.1.2) with battery backup. For existing buildings, a battery-powered CO alarm is acceptable where the building was an existing structure, to avoid costly retrofit.
Trigger: The requirement is activated by the presence of a fuel-burning appliance, a forced-air furnace, or an attached garage in the building.
Enforcement
CO detector requirements under Utah Code Title 15A are enforced by two authorities:
Utah State Fire Marshal Division has statewide enforcement authority under Utah Code Title 15A for fire code compliance in public and commercial buildings, including hotels and multi-unit lodging. The Fire Prevention Board adopts rules under Utah Administrative Code R710.
Local code officials (building inspectors, local fire marshals) enforce code compliance within their jurisdictions for permitted construction and alterations. Utah Code §§ 10-8-53.5 and 17-50-327 limit municipality and county authority to enforce CO detector ordinances against residential dwelling unit owners, with an exception for new construction building permit compliance. Commercial lodging such as hotels is not subject to this residential-focused restriction.
Penalties
Utah Code Title 15A does not provide a standalone statewide fine schedule specific to CO detector noncompliance. Enforcement proceeds through the code administration workflow: local building officials or the State Fire Marshal may issue orders for corrective action and require installation within a specified timeframe. Operating a hotel or lodging facility without required CO detection can result in failed inspections and mandatory corrective orders under the general enforcement authority of Utah Code Title 15A. Operators should document all CO alarm installation and maintenance records as evidence of compliance during inspections.
Local Override Warning
Utah Code 10-8-53.5 and 17-50-327 stop a municipality or county enforcing a carbon monoxide detector ordinance against anyone but the occupant of a residential dwelling, outside new-construction permits. That preemption shapes what a city can do to a host and it does not close the door, because a licence condition is not an enforcement action against an owner.
Sandy is the city that found the opening. Section 15-11-5 lists what an inspection of a short-term rental has to establish, and paragraph (2) is a working carbon monoxide detector on each floor alongside a working smoke alarm in each sleeping area. The per-level standard is the same one Utah already asks statewide, so what Sandy adds is not the placement but the checking: in Sandy it is a condition of the licence and an inspector confirms it, where the state route leaves it to a building permit that an existing house may never pull. Section 21-11-26(g) then makes the special-use permit application carry an interior layout identifying the use of every room and marking the location of every smoke and carbon monoxide detector, so the city holds a plan of where the devices are supposed to be.
Ogden runs a full carbon monoxide ordinance instead, seven sections at Title 12 Chapter 17. Section 12-17-3(A) reaches all existing residential occupancies and dwellings containing fuel-fired appliances or with attached garages, which takes in a let property whatever the letting term. Subsection (B) puts installation, maintenance, testing, battery replacement and immediate repair on the owner, and subsection (C) hands the same list to the occupant of a pre-2005 dwelling. There is an anti-tampering prohibition and a $50 civil penalty, suspended on proof of compliance within thirty days. An operator should read (B) and (C) as cumulative: Utah Code 57-22-3(1) makes an owner's own duty one of maintaining the unit in accordance with local ordinances, and 57-22-3(4) allows a duty to move to another party only by explicit written agreement signed by the parties, which an ordinance is not.
Salt Lake County and Logan add nothing. Park City could not be read on 10 August 2026 and should be treated as open, as should every Utah municipality outside those five. Ask the city whether its requirement runs through a licence or through an ordinance before assuming the state preemption answers it.
Frequently Asked Questions
Are carbon monoxide detectors required in Utah hotels and motels?
Does Utah's CO detector law apply to Airbnb and short-term rental hosts?
What technical standards apply to CO alarms in Utah lodging?
Who enforces CO detector requirements for Utah hotels and STRs?
What are the penalties for a Utah hotel or STR without required CO detectors?
What is the difference between Utah's requirements for new construction hotels versus existing hotels?
Disclaimer: This page explains the law as it stood on August 24, 2026. It is general information, not legal advice, and reading it creates no attorney-client relationship. Requirements vary by city, county and building type, and statutes and codes are amended: confirm the current text with the issuing authority before acting on it. Each requirement here cites the instrument it comes from, so you can check it at source.
Sources and References
- Utah Code § 15A-5-205.5, Amendments to Chapters 11 and 12 of IFC (including IFC Section 1103.9 rewrite for existing Group R occupancies) , Utah Code § 15A-5-205.5(g), IFC Chapter 11, Section 1103.9, Carbon Monoxide Alarms, deleted and rewritten; Group R existing building CO detection requirements; NFPA 720 and UL 2034 standards
- Utah Code § 15A-3, Amendments to International Building Code (IBC Section 908.7, new construction CO alarm requirement) , IBC Section 908.7, CO alarm requirement for Group R-1 (hotels, motels) and other Group R new construction with fuel-burning appliances or attached garages
- Utah State Fire Marshal Division, Fire Prevention Board and enforcement authority , Utah Fire Marshal authority under Utah Code Title 15A; Utah Administrative Code R710-4 (Buildings Under the Jurisdiction of the Utah Fire Prevention Board)
- Utah Code §§ 10-8-53.5 and 17-50-327, Local government authority limitation on CO detector enforcement , Utah Code § 10-8-53.5 (municipality limitation); § 17-50-327 (county limitation); restriction on enforcing CO detector requirements against residential dwelling unit owners except for new construction building permit compliance
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