30 C.F.R. § 57.4501 Fuel lines.
Title 30 - Mineral Resources
Fuel lines shall be equipped with valves capable of stopping the flow of fuel at the source and shall be located and maintained to minimize fire hazards. This standard does not apply to fuel lines on self-propelled equipment.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart C—Fire Prevention and Control
Installation/Construction/Maintenance
§ 57.4501 Fuel lines.