Code of Massachusetts Regulations
521 CMR - Architectural Access Board
Title 521 CMR 40 - ALARMS
Section 40.2 - AUDIBLE ALARMS
Universal Citation: 521 CMR 40 MA Code of Regs 40.2
Current through Register 1531, September 27, 2024
If provided, audible emergency alarms shall produce a sound that exceeds the prevailing equivalent sound level in the room or space by at least 15 dbA or exceeds any maximum sound level with a duration of 60 seconds by 5 dbA, whichever is louder. If an audible alarm in an adjacent space provides the proper decibel level within a room, then only the visual alarm is needed. Sound levels for alarm signals shall not exceed 120 dbA.
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