San Angelo, TX Building Safety: Carbon Monoxide Detectors (2026)

Sec. 3, Location, for carbon monoxide alarms: they must be installed outside of each separate sleeping area within 12 feet of the outside edge of the bedroom door, mirroring the smoke alarm placement rule in the same amendment section. Where a fuel-burning appliance, such as a gas furnace, water heater or space heater, is located within a bedroom or its attached bathroom, the alarm must instead be installed inside that bedroom, putting the detector closer to the combustion source rather than in the hallway. This sits in the same Division 3 residential code adoption that also governs foundation anchorage, wind and snow design loads, and frost line depth for the city, all amended into the base 2021 IRC that sec.

092 adopts for one- and two-family dwellings. The inspections and permits department administrator, as building official, verifies alarm placement as part of required residential inspections before a certificate of occupancy issues. Because the amendment is embedded in the adopted residential code rather than a standalone ordinance, it applies citywide to new construction and to alterations that trigger a residential building permit under the same chapter.