Add section R314.9 Common Areas as follows:
R314.9Common Areas. In all buildings that are not protected with sprinklers, each unit shall have additional interconnected smoke detectors on the stairway side of all doors leading to common interior stairways. If there is a common basement, a separate interconnected system of smoke detectors, including smoke detectors on the stairway side of all doors leading to interior stairways, shall be provided to the basement level only.780 CMR, ch. 51, ch. 3, R301, 301.1, 314.9
Amended by Mass Register Issue 1532, eff. 10/11/2024.