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Regulations last checked for updates: Feb 16, 2025
Title 40 - Protection of Environment last revised: Nov 16, 2025
All Titles
Title 40
Chapter I
Part 211
Subpart B - Subpart B—Hearing Protective Devices
source:
44 FR 56127, Sept. 28, 1979, unless otherwise noted.
cite as:
40 CFR 211.212
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