30 C.F.R. § 57.9305 Truck spotters.
Title 30 - Mineral Resources
(a) If truck spotters are used, they shall be in the clear while trucks are backing into dumping position or dumping. (b) Spotters shall use signal lights to direct trucks where visibility is limited. (c) When a truck operator cannot clearly recognize the spotter's signals, the truck shall be stopped.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart H—Loading, Hauling, and Dumping
Safety Devices, Provisions, and Procedures for Roadways, Railroads, and Loading and Dumping Sites
§ 57.9305 Truck spotters.
