Code of Federal Regulations Title 24. Housing and Urban Development § 24.891.555 Smoke detectors

(a) Performance requirement. After October 30, 1992, each dwelling unit must include at least one battery-operated or hard-wired smoke detector, in proper working condition, on each level of the unit. If the unit is occupied by hearing-impaired persons, smoke detectors must have an alarm system designed for hearing-impaired persons in each bedroom occupied by a hearing-impaired person.

(b) Acceptability criteria. The smoke detector must be located, to the extent practicable, in a hallway adjacent to a bedroom, unless the unit is occupied by a hearing-impaired person, in which case each bedroom occupied by a hearing-impaired person must have an alarm system connected to the smoke detector installed in the hallway.