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Title 30 - Mineral Resources
Chapter I - Mine Safety and Health Administration, Department of Labor
Subchapter K - Metal and Nonmetal Mine Safety and Health
Part 57 - Safety and Health Standards—Underground Metal and Nonmetal Mines
30 CFR Subpart D
30 CFR Subpart D
Air Quality, Radiation, Physical Agents, and Diesel Particulate Matter
May 28, 2026
Subject Group
Air Quality—Surface and Underground
Hed1
Air Quality—Surface Only [Reserved]
Subject Group
Air Quality—Underground Only
Subject Group
Radiation—Underground Only
Subject Group
Diesel Particulate Matter—Underground Only
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