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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

  • 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)*†

Typical Sound Levels (dBA)

Body Shop Typical Sound Levels (dBA)

Mechanical Service Typical Sound Levels (dBA)

Welding 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

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