30 CFR 57.8532 - Opening and closing ventilation doors.

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Title 30: Mineral Resources

CHAPTER I: MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR

SUBCHAPTER K: METAL AND NONMETAL MINE SAFETY AND HEALTH

PART 57: SAFETY AND HEALTH STANDARDS-UNDERGROUND METAL AND NONMETAL MINES

Subpart G: Ventilation

: Underground Only

57.8532 - Opening and closing ventilation doors.

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.

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