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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28 Fuses For Use With Dir...
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Subpart D —
Quality Control
§28.30 —
Quality control plans; filing requirements
§28.31 —
Quality control plans; contents
§28.32 —
Proposed quality control plans; approval by MSHA
§28.33 —
Quality control test methods, equipment, and records; review by MSHA; revocation of approval