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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 B - Testing, Evaluation, and Approval of Mining Products |
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Part 33 - Dust Collectors for Use in Connection With Rock Drilling in Coal Mines |
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Subpart B - Dust-Collector Requirements |
§ 33.20 - Design and construction. |
§ 33.21 - Modification of test equipment. |
§ 33.22 - Mode of use. |
§ 33.23 - Mechanical positioning of parts. |