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Code of Federal Regulations Title 30. Mineral Resources § 30.57.22211 Air flow (I–A mines)

Current as of January 02, 2025 | Updated by Findlaw Staff

The average air velocity in the last open crosscut in pairs or sets of developing entries, or through other ventilation openings nearest the face, shall be at least 40 feet per minute. The velocity of air ventilating each face at a work place shall be at least 20 feet per minute.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 30. Mineral Resources § 30.57.22211 Air flow (I–A mines) - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-30-mineral-resources/cfr-sect-30-57-22211/

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