30 C.F.R. § 57.14216 Backpoling.
Title 30 - Mineral Resources
Backpoling of trolleys is prohibited except where there is inadequate clearance to reverse the trolley pole. Where backpoling is required, it shall be done only at the minimum tram speed of the trolley.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart M—Machinery and Equipment
Safety Practices and Operational Procedures
§ 57.14216 Backpoling.
