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OSHA Regulations (Standards - 29 CFR)

• Monitoring noise levels non-mandatory informational appendix - 1910.95 App G
• Occupational noise exposure. - 1910.95
• Noise exposure computation - 1910.95 App A
• Occupational noise exposure. - 1926.52
• Methods for estimating the adequacy of hearing protector attenuation - 1910.95 App B
• Hearing protection. - 1926.101

OSHA Directive

• CPL 2-2.35A - 29 CFR 1910.95(b)(1), Guidelines for Noise Enforcement; Appendix A

OSHA Standards Interpretation and Compliance Letters 

• Methods of training for microprocessor audiometer technicians.
• Notification requirements for standard threshold shifts.
• Ear muffs and ear plugs are not both required if one offers protection.
• One type of muff and plug available for employee hearing protector selection.