New Brunswick, NJ Fire Regulations: Smoke Detectors (2026)

The smoke detector rules are PM-707 in § 15.08.020, the city's amendments to the BOCA property maintenance code. Detectors must be listed by Underwriters Laboratories, Factory Mutual or another nationally recognized testing laboratory as ionization or photo-electric units. A single station unit needs an integral alarm of at least 85 dbA at a ten foot distance, a manual test button or approved alternative, and a power source monitor light, and it must be listed to the latest NFPA No. 72. All smoke alarms must also comply with N.J.A.C. 5:70-4.19(c).

Battery-powered single station units are allowed in dwelling units when the owner or representative inspects and cleans all units and replaces batteries annually or as the manufacturer's printed recommendations require. The owner of a two-family dwelling must give each occupant the manufacturer's testing instructions and, once an occupant reports being unable to do the monthly testing, must perform or arrange it. In all common areas the owner tests every detector or system monthly.

Common areas in buildings that do not meet the current New Jersey Uniform Construction Code need an approved system. That means a detector in each corridor up to 30 feet long with another for every additional 30 feet or part, detectors at each floor level of interior stairways not enclosed by a one hour fire-rated separation, and one detector per 450 square feet in basements, cellars or attics without a one hour fire-rated smooth ceiling, or one per 900 square feet where a one hour ceiling assembly exists. With the fire sub-code official's approval, heat detectors can replace smoke detectors where frequent nuisance alarms would be likely.

New systems need permits and inspections under the Uniform Construction Code (PM-707.6). Section 15.04.120 charges $50 for 1 to 10 smoke or heat devices in use group R-5, and § 8.44.090 sets a $10 reinspection fee for a certificate of smoke detector compliance.