Carbon monoxide detectors are not required in Texas homes by any statewide law. The Texas Property Code mandates smoke alarms in rentals but says nothing about CO alarms, and no general statute obligates homeowners to install them. Local building codes are a different story: many Texas cities require CO alarms in new construction with fuel-burning appliances or attached garages, and licensed child-care facilities must have them under state law.
No Statewide Requirement for Homes
Texas Health and Safety Code Chapter 766 defines a carbon monoxide alarm and sits in the part of state law that addresses residential fire safety, but it stops short of ordering homes to have one. There is no state penalty for a Texas homeowner who has no CO detector. The Texas Department of Insurance and the State Fire Marshal’s Office treat the issue as a public education matter, recommending an alarm on each floor and outside every sleeping area.1Texas Department of Insurance. How to Avoid Carbon Monoxide Poisoning at Home
The contrast with smoke alarms is sharp. Smoke alarms carry a detailed statutory scheme that CO alarms do not.
What Renters and Landlords Should Know
Texas Property Code Chapter 92, Subchapter F lays out the smoke alarm rules for rental properties: a landlord must install at least one smoke detector in each sleeping room, make sure it works when the tenant takes possession, and repair it within a reasonable time after the tenant reports a problem.2State of Texas. Texas Property Code 92-251 – Definitions The statute defines “smoke alarm” as a device that detects products of combustion. Carbon monoxide detectors appear nowhere in these sections.
That gap has real consequences for tenants. The enforcement tools the Property Code gives you for a missing or broken smoke alarm, including the written notice process and the remedies that follow, do not reach a missing CO detector.3State of Texas. Texas Property Code 92-258 – Inspection and Repair You cannot invoke those provisions to require a landlord to add one.
Landlords are not off the hook entirely when CO is involved. General negligence principles still apply. A landlord who knows (or should know) that a furnace, water heater, or other fuel-burning appliance is leaking carbon monoxide into a unit and fails to repair it can face liability for resulting injuries. The claim would be framed as failing to maintain the property in a safe condition rather than failing to install a detector. If your rental has gas appliances or an attached garage, asking the landlord to install a CO alarm is reasonable, and a battery or plug-in unit you buy yourself is inexpensive protection either way.
New Construction and Local Building Codes
Texas has no single mandatory residential building code applied to all new homes. Instead, cities and counties adopt their own editions of the International Residential Code. The exception is industrialized (factory-built) housing, which must comply with the 2021 IRC under rules administered by the Texas Department of Licensing and Regulation.4Texas Department of Licensing and Regulation. Industrialized Housing and Buildings Mandatory Building Codes
The IRC provision that triggers CO alarm requirements is Section R315. Under R315, a dwelling unit needs CO alarms if it has a fuel-burning heater or appliance, a fireplace, or an attached garage. Alarms go outside each sleeping area and on every occupiable level, including basements. In new construction, they must be hardwired to the building’s electrical system with battery backup, and when more than one is required in the home, all of them must be interconnected so that triggering one sounds every alarm.
Whether those requirements reach your specific home depends on which Texas city or county the property sits in and which IRC edition the local government has adopted. Some jurisdictions apply CO alarm rules to existing homes as well, not just new builds. The City of Abilene, for example, requires CO alarms in both new and existing dwelling units that have attached garages or fuel-burning appliances, following the IRC’s placement and interconnection standards.5City of Abilene. Owner/Contractor Certification of Smoke/Carbon Monoxide Detector and Vent Compliance Smaller jurisdictions may have adopted no building code at all.
Child-Care Facilities Must Have Them
The clearest CO detector mandate in Texas law is in child care. Under Human Resources Code Section 42.060, every day-care center, group day-care home, and family home must have carbon monoxide detectors installed according to rules set by the Health and Human Services Commission.6State of Texas. Texas Human Resources Code 42-060 – Carbon Monoxide Detectors The executive commissioner sets the specifics on placement, number of alarms, and maintenance.
One exception applies. A day-care center housed in a school facility that already meets the facility standards adopted by the commissioner of education under Education Code Section 46.008, or similar standards adopted by a local school district board, does not have to meet the CO detector requirement separately.6State of Texas. Texas Human Resources Code 42-060 – Carbon Monoxide Detectors For every other licensed child-care operation, the requirement applies regardless of whether the building has any fuel-burning appliance.
How to Find Out What Applies to Your Property
Because the real rules sit at the local level, the only reliable way to know whether your home must have CO alarms is to call your city or county building department. Two questions cover it: which edition of the IRC (if any) the jurisdiction has adopted, and whether any local ordinance separately requires CO detectors in existing homes, rental units, or at the time of sale. Some Texas jurisdictions impose CO alarm requirements at change of occupancy or sale even when no renovation would otherwise trigger the building code.
Where to Install an Alarm and Keep It Working
Most Texas homeowners who install a CO detector are doing it by choice, not by legal command, so a word on placement and upkeep. The EPA recommends mounting detectors on a wall about five feet above the floor or on the ceiling, with a detector on every floor.7US Environmental Protection Agency (EPA). Where Should I Place a Carbon Monoxide Detector? If you can install only one, put it near the sleeping area where the alarm will wake you. Avoid locations directly next to or above a fireplace or gas appliance, where normal startup emissions can cause nuisance alarms. The Texas Department of Insurance recommends an alarm outside every sleeping area and on every level, and warns against letting furniture or curtains block the unit.1Texas Department of Insurance. How to Avoid Carbon Monoxide Poisoning at Home
Test alarms monthly using the test button and change batteries at least annually. Sensors degrade whether or not they ever detect gas; most electrochemical sensors last five to seven years. TDI advises replacing CO alarms every 10 years or when the end-of-life signal sounds, whichever comes first.1Texas Department of Insurance. How to Avoid Carbon Monoxide Poisoning at Home The end-of-life chirp is a different pattern from the low-battery warning and means the sensor itself is no longer reliable. Check the manufacture date on the back of the unit if you are unsure how old it is.