30 C.F.R. § 57.19101 Stopblocks and derail switches.
Title 30 - Mineral Resources
Positive stopblocks or a derail switch shall be installed on all tracks leading to a shaft collar or landing.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart R—Personnel Hoisting
Shafts
§ 57.19101 Stopblocks and derail switches.
