30 C.F.R. § 56.19130 Conveyance shaft test.
Title 30 - Mineral Resources
Before hoisting persons and to assure that the hoisting compartments are clear of obstructions, empty hoist conveyances shall be operated at least one round trip after: (a) Any hoist or shaft repairs or related equipment repairs that might restrict or obstruct conveyance clearance; (b) Any oversize or overweight material or equipment trips that might restrict or obstruct conveyance clearance; (c) Blasting in or near the shaft that might restrict or obstruct conveyance clearance; or (d) Remaining idle for one shift or longer.
Title 30: Mineral Resources
PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES
Subpart R—Personnel Hoisting
Inspection and Maintenance
§ 56.19130 Conveyance shaft test.
