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Code of Federal Regulations (Last Updated: July 5, 2024) |
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Title 30 - Mineral Resources |
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Chapter I - Mine Safety and Health Administration, Department of Labor |
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SubChapter K - Metal and Nonmetal Mine Safety and Health |
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Part 57 - Safety and Health Standards - Underground Metal and Nonmetal Mines |
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Subpart F - Drilling and Rotary Jet Piercing |
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Drilling - Surface and Underground |
§ 57.7055 - Intersecting holes.
Latest version.
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§ 57.7055 Intersecting holes.
Holes shall not be drilled where there is a danger of intersecting a misfired hole or a hole containing explosives, blasting agents, or detonators.
[56 FR 46517, Sept. 12, 1991; 56 FR 52193, Oct. 18, 1991]