Regulations last checked for updates: Nov 22, 2024

Title 30 - Mineral Resources last revised: Nov 19, 2024
All TitlesTitle 30Chapter IPart 57Subpart D - Subpart D—Air Quality, Radiation, Physical Agents, and Diesel Particulate Matter
View all text of Subpart D [§ 57.5001 - § 57.5075]
§ 57.5015 - Oxygen deficiency.

Air in all active workings shall contain at least 19.5 volume percent oxygen.

authority: 30 U.S.C. 811.
source: 50 FR 4082, Jan. 29, 1985, unless otherwise noted.
cite as: 30 CFR 57.5015
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