49 CFR Part 227
OCCUPATIONAL NOISE EXPOSURE
November 18, 2020
Subpart
A
General
Subpart
B
Occupational Noise Exposure for Railroad Operating Employees.
Subpart
Appendix
A
Noise Exposure Computation
Appendix
B
Methods for Estimating the Adequacy of Hearing Protector Attenuation
Appendix
C
Audiometric Baseline Revision
Appendix
D
Audiometric Test Rooms
Appendix
E
Use of Insert Earphones for Audiometric Testing
Appendix
F
Calculations and Application of Age Corrections to Audiograms
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