Billings, MT Building Safety: Carbon Monoxide Detectors (2026)

The city's short-term rental standard, Sec. 27-1005.O.10.a, ties health and safety equipment to the permit itself: guest homes and tourist homes must contain smoke detectors, fire extinguishers, and CO2 detectors (the code's term for carbon monoxide alarms) and stay compliant with building, fire, and other codes. The zoning coordinator reviews compliance at application and renewal under Sec. 27-1621, and can deny or revoke a permit if fire or safety code issues aren't fixed. The rule applies only to licensed short-term rentals. Billings has no separate citywide carbon monoxide detector mandate for owner-occupied homes or standard long-term rentals in this code.