Code of Federal Regulations · Section

§ 57.8532 — Opening And Closing Ventilation Doors

30 C.F.R. § 57.8532

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When ventilation control doors are opened as a part of the normal mining cycle, they shall be closed as soon as possible to re-establish normal ventilation to working places.

30 C.F.R. § 57.8531 30 C.F.R. § 57.8534

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