§ 57.22222. Ventilation materials (I-A, I-B, I-C, II-A, III, V-A, and V-B mines).
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/us/cfr/t30/s§ 57.22222·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
Brattice cloth and ventilation tubing shall be approved by MSHA in accordance with 30 CFR part 7, or shall bear a BC or VT acceptance number issued by the MSHA Approval and Certification Center. \[54 FR 30508, July 20, 1989\]
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- 30 CFR 7
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§ 57.22222
Ventilation materials (I-A, I-B, I-C, II-A, III, V-A, and V-B mines).
Cite30 CFR 7
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