30 CFR § 57.19078
Hoisting buckets from the shaft bottom.
All buckets shall be stopped after being raised about three feet above the
shaft bottom. A bucket shall be stabilized before a hoisting signal is given
to continue hoisting the bucket to the crosshead. After a hoisting signal is
given, hoisting to the crosshead shall be at a minimum speed. The signaling
device shall be attended constantly until a bucket reaches the guides. When
persons are hoisted, the signaling devices shall be attended until the
crosshead has been engaged.