30 C.F.R. § 57.19012 Grooved drums.
Title 30 - Mineral Resources
Where grooved drums are used, the grooves shall be of suitable size and pitch for the ropes used.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart R—Personnel Hoisting
Hoists
§ 57.19012 Grooved drums.
