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title 30
Mineral Resources
chapter I
CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
part 57
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
subpart D
Subpart D—Air Quality, Radiation, Physical Agents, and Diesel Particulate Matter
subjgrp 156
Air Quality—Underground Only
Subjgrp 156. Air Quality—Underground Only
§ 57.5015 - Oxygen deficiency.
