Las Vegas has adopted the International Fire Code and International Residential Code, which together require hardwired interconnected smoke alarms with battery backup in every bedroom, outside each sleeping area, and on every floor. CO alarms are required where fuel-burning appliances or attached garages are present.
Smoke alarm placement in Las Vegas follows IRC R314 and IFC 907 as adopted under LVMC Title 15. New construction and substantial renovation must install hardwired, interconnected alarms with 10-year sealed battery backup in every bedroom, outside each sleeping area, and on each story including basements. Carbon monoxide alarms are required within 10 feet of every sleeping area in dwellings with fuel-burning appliances (furnace, water heater, fireplace, gas range) or an attached garage per IRC R315. Existing homes at sale are not required to retrofit hardwired alarms, but a battery-powered alarm of the correct type must be present in each required location. Short-term rentals are held to the new-construction standard under LVMC 6.75 — this is one of the life-safety items checked at STR inspection. Dual-sensor (ionization + photoelectric) alarms are recommended given that Las Vegas kitchens produce significant ionization false alarms during summer cooking. Alarms older than 10 years must be replaced regardless of battery condition.
Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact Las Vegas code enforcement directly for current fines, enforcement procedures, and hearing options.
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