OSHA General Industry Standards (29 CFR Part 1910)
Fire Protection (Subpart L)

OSHA General Industry Standards (29 CFR Part 1910) 1910.165: Employee alarm system testing and maintenance

Employee alarm systems must be perceivable above ambient noise and light throughout the facility, produce distinctive signals for specific emergencies, and be tested every 2 months for non-supervised systems (different actuation device each test) or annually for supervised systems. Back-up alarm means must be in place when the primary system is out of service.

Other controls in Fire Protection (Subpart L)

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