Code of Federal Regulations (Last Updated: July 5, 2024) |
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.
Latest version.
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§ 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.