Main fan operation (I-C mines).

  1. Law
  2. CFR 30
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  6. Safety and Health Standards - Underground Metal and Nonmetal Mines
  7. Safety Standards for Methane in Metal and Nonmetal Mines
  8. Ventilation
  9. Main fan operation (I-C mines).

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§ 57.22203 Main fan operation (I-C mines).

Main fans shall be operated continuously while ore production is in progress.


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