Empty conveyances shall be operated at least one round trip before hoisting persons after any repairs.
(Sec. 101, Federal Mine Safety and Health Act of 1977, Pub. L. 91-173 as amended by Pub. L. 95-164, 91 Stat. 1291 (30 U.S.C. 811))
[48 FR 53241, Nov. 25, 1983]