Code of Federal Regulations
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30 CFR Mineral Resources
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I Mine Safety and Health ...
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B Testing, Evaluation, an...
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18 Electric Motor-Driven ...
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Subpart D —
Machines Assembled With Certified or Explosion-Proof Components, Field Modifications of Approved Machines, and Permits To Use Experimental Equipment
§18.80 —
Approval of machines assembled with certified or explosion-proof components
§18.81 —
Field modification of approved (permissible) equipment; application for approval of modification; approval of plans for modification before modification
§18.82 —
Permit to use experimental electric face equipment in a gassy mine or tunnel
Appendix I
to Subpart D of Part 18
Appendix II
to Subpart D of Part 18