30 C.F.R. § 57.14161 Makeshift couplings.
Title 30 - Mineral Resources
Couplings used on underground rail equipment shall be designed for that equipment, except that makeshift couplings may be used to move disabled rail equipment for repairs if no hazard to persons is created.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart M—Machinery and Equipment
Safety Devices and Maintenance Requirements
§ 57.14161 Makeshift couplings.

