OSHA Requirements 29 CFR 1910.95 Occupational Noise Exposure
Permissible Exposure Limit (PEL)
- The 8-hour time-weighted-average (TWA) noise exposure of workers cannot exceed 90 dBA
- Higher noise exposures are allowed for shorter exposure times
- PEL for 4 hour exposures is 95 dBA
- PEL for 2 hour exposures is 100 dBA
- Hearing protection must be made available to all employees exposed to 8-hour TWA noise levels of 85 dB or above and must be worn by all employees exposed to a TWA of 90 dB(A) and above
- Hearing protection must be provided at no cost
- Employees shall be given the opportunity to select hearing protectors from a variety of suitable hearing protectors
For more information on OSHA hearing standards, go to www.OSHA.gov.
Typical Sound Levels (dBA)*†
* Employers should thoroughly read and understand these and all applicable regulations prior to selection and use of personal protection equipment.
* Hearing protectors should be based upon individual exposure assessment.
† Noise Navigator® Sound Level Database, E-A-R 88-34/HP, Elliot H. Berger, Rick Neitzel, and Cynthia A. Kladden, E-A-R / Aearo Company, E-A-RCalSM
Laboratory and the University of Washington, Department of Environmental and Occupational Health Sciences, Seattle, WA; November 6, 2008; version 1.4