30 CFR § 77.1903 Hoists and hoisting; minimum requirements.
(a) Hoists used in transporting persons and material during drilling,
mucking, or other excavating operations in any slope or shaft shall have
rated capacities consistent with the loads to be handled.
(b) Each hoist used in drilling, mucking, or other excavating
operations shall be equipped with an accurate and reliable indicator of the
position of the cage, platform, or bucket. The indicator shall be installed
in clear view of the hoist operator.
( § 101, Federal Mine Safety and Health
Act of 1977, Pub. L. 91-173 as amended by Pub. L. 95-164, 91 Stat. 1291 (30