30 C.F.R. § 57.4057 Underground trailing cables.
Title 30 - Mineral Resources
Underground trailing cables shall be accepted or approved by MSHA as flame resistant. [57 FR 61223, Dec. 23, 1992]
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart C—Fire Prevention and Control
§ 57.4057 Underground trailing cables.

