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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
Subpart F: Drilling and Rotary Jet Piercing
: Drilling-Surface and Underground
57.7056 - Collaring in bootlegs.
Holes shall not be collared in bootlegs.
[56 FR 46517, Sept. 12, 1991]
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