CFR
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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.
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