Employee Alarm Systems

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29 CFR 1910.165

This OSHA standard regulates alarm systems that are required by other OSHA standards, such as 1910.38, which concerns emergency action plans and fire prevention plans. 

The alarm should be used to notify employees of the need to evacuate in the event of a fire or emergency, and should be audible over normal background noise levels.  If the system is used for other communication, the alarm should be distinctive and recognizable as a signal to evacuate or to perform necessary assigned duties under the emergency action plan.

The employer must: