Liquefied petroleum gas use underground.

  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. Fire Prevention and Control
  8. Flammable and Combustible Liquids and Gases
  9. Liquefied petroleum gas use underground.

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§ 57.4463 Liquefied petroleum gas use underground.

Use of liquefied petroleum gases underground shall be limited to maintenance work.


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