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U.S. Code
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TITLE 30 - MINERAL LANDS AN...
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CHAPTER 22—MINE SAFETY AND ...
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SUBCHAPTER II—INTERIM MANDATORY HEALTH STANDARD...
SUBCHAPTER II—INTERIM MANDATORY HEALTH STANDARDS (§§ 841 – 846)
§ 841. Mandatory health standards for underground mines; enforcement; review; purpose
§ 842. Dust concentration and respiratory equipment
§ 843. Medical examinations
§ 844. Rock dust and gas hazards; controls
§ 845. Dust standards in presence of quartz
§ 846. Noise standards; promulgation of new standards; tests; procedures; protective devices