Actions at 0.5 percent methane (I-C mines).

  1. Law
  2. CFR 30
  3. Mineral Resources
  4. Mine Safety and Health Administration, Department of Labor
  5. Metal and Nonmetal Mine Safety and Health
  6. Safety and Health Standards - Underground Metal and Nonmetal Mines
  7. Safety Standards for Methane in Metal and Nonmetal Mines
  8. Ventilation
  9. Actions at 0.5 percent methane (I-C mines).

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§ 57.22233 Actions at 0.5 percent methane (I-C mines).

If methane reaches 0.5 percent in the mine atmosphere, ventilation changes shall be made to reduce the level of methane. Until methane is reduced to less than 0.5 percent, no other work shall be permitted in affected areas.

[52 FR 24941, July 1, 1987; 52 FR 27903, July 24, 1987]


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