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Controlling workplace noise
  • Once noise levels exceed an eight-hour TWA of 90 decibels, it is time for employers to implement additional controls.

Once an employer becomes aware of a noise problem in the workplace — usually meaning employee exposure levels exceeding an eight-hour time-weighted average (TWA) of 90 decibels — the next step is to decide how to combat the problem. Engineering and administrative controls are essential to putting up an effective fight against workplace noise.