ASI Health Services | Frequent Asked Questions

The hearing conservation program requires employers to monitor noise exposure levels in a way that accurately identifies employees exposed to noise at or above 85 decibels (dB) averaged over 8 working hours, or an 8-hour time-weighted average (TWA).

 

According to the standards, a hearing conservation program is required “whenever employee noise exposures equal or exceed an 8-hour time-weighted average sound level (TWA) of 85 decibels measured on the A scale (slow response) or, equivalently, a dose of fifty percent.

OSHA says when there is a change in the plant facility that affects the noise level, such as removing or adding equipment. NIOSH recommends repeating your Noise Survuy every two years.