[Code of Federal Regulations] [Title 30, Volume 1] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 30CFR62.100] [Page 421] TITLE 30--MINERAL RESOURCES CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR PART 62_OCCUPATIONAL NOISE EXPOSURE--Table of Contents Sec. 62.100 Purpose and scope; effective date. Sec. 62.100 Purpose and scope; effective date. 62.101 Definitions. 62.110 Noise exposure assessment. 62.120 Action level. 62.130 Permissible exposure level. 62.140 Dual hearing protection level. 62.150 Hearing conservation program. 62.160 Hearing protectors. 62.170 Audiometric testing. 62.171 Audiometric test procedures. 62.172 Evaluation of audiograms. 62.173 Follow-up evaluation when an audiogram is invalid. 62.174 Follow-up corrective measures when a standard threshold shift is detected. 62.175 Notification of results; reporting requirements. 62.180 Training. 62.190 Records. Appendix to Part 62 Authority: 30 U.S.C. 811. Source: 64 FR 49630, Sept. 13, 1999, unless otherwise noted. The purpose of these standards is to prevent the occurrence and reduce the progression of occupational noise-induced hearing loss among miners. This part sets forth mandatory health standards for each surface and underground metal, nonmetal, and coal mine subject to the Federal Mine Safety and Health Act of 1977. The provisions of this part become effective September 13, 2000.