AIR & NOISE SERVICES
The Occupational Safety and Health Administration’s (OSHA’s) Noise standard (29 CFR 1910.95) requires employers to have a hearing conservation program in place if workers are exposed to a time-weighted average (TWA) noise level of 85 decibels (dBA) or higher over an 8-hour work shift.
https://www.osha.gov/SLTC/noisehearingconservation/evaluation.html
https://www.osha.gov/SLTC/indoorairquality/faqs.html
