1. LawStack
  2. Title 30 - Mineral Resources
  3. Chapter I - Mine Safety and Health Administration, Department of Labor
  4. Subchapter K - Metal and Nonmetal Mine Safety and Health
  5. Part 57 - Safety and Health Standards—Underground Metal and Nonmetal Mines
  6. Subpart G - Ventilation
  7. Subject Group - Underground Only
  8. 30 CFR § 57.8532
30 CFR § 57.8532
Opening and closing ventilation doors
May 28, 2026
CFR

§ 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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§ 57.8531 Construction and maintenance of ventilation doors
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§ 57.8534 Shutdown or failure of auxiliary fans

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