Piscataway, NJ Fire Regulations: Smoke Detectors (2026)

PM-705.5 sets the base requirement: dwelling units in Use Groups R-2 and R-3 (the standard residential categories) must have a smoke detector "in the immediate vicinity of the bedrooms," and "in all residential occupancies, smoke detectors shall be required on every story of the dwelling unit, including basements." Where a split-level home has no intervening door between levels, one detector on the upper level can cover the adjacent lower level if that lower level sits less than a full story down. PM-707.3 sharpens the placement rule for one- and two-family dwellings: each unit needs at least one approved single-station detector located so the distance from the detector to any sleeping-area exit door does not exceed 10 feet, and a connected basement, cellar or attic used only by that unit's occupants needs its own detector at the highest ceiling point or the first-floor stair landing.

PM-707.2 assigns upkeep duties to the owner: inspecting, cleaning and replacing batteries in all units at least annually (or per the manufacturer's schedule), supplying written testing instructions to occupants of two-family dwellings, and performing the monthly test personally if a notified occupant cannot. PM-705.5.3 makes tampering or interfering with a smoke detector's effectiveness a separate code violation on its own. Separately, before any change of occupancy the Office of the Municipal Certificate of Occupancy Official must issue a Certificate of Smoke Detector and Carbon Monoxide Alarm Compliance under § 19-14.4, with inspection fees scaled from $35 (requested more than 10 business days ahead) up to $125 (fewer than four business days ahead), plus $25 for each inspection beyond two.