Baseline to use when measuring occupational related hearing loss for OSHA recordkeeping purposes.
OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.
December 17, 1991
Mr. James C. Busche
Corporate Safety Engineer
Caterpillar Inc.
100 NE Adams Street
Peoria, Illinois 61629
Dear Mr. Busche:
Thank you for your letter of November 5 detailing your concerns of which baseline to use when measuring occupational related hearing loss for OSHA recordkeeping purposes.