30 C.F.R. § 57.9202 Loading and hauling large rocks.
Title 30 - Mineral Resources
Large rocks shall be broken before loading if they could endanger persons or affect the stability of mobile equipment. Mobile equipment used for haulage of mined material shall be loaded to minimize spillage where a hazard to persons could be created.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart H—Loading, Hauling, and Dumping
Transportation of Persons and Materials
§ 57.9202 Loading and hauling large rocks.