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R314.3.2 Smoke Alarms in Existing Buildings
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Smoke alarms in existing buildings constructed before November 6, 1974, not undergoing an alteration, addition, or change in occupancy requiring a building permit, shall be installed in the following locations in each dwelling unit or sleeping unit:
R 408.30546
- In each sleeping room.
- On each floor level including the basement level.
R 408.30546
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