56.19050—Bucket requirements.

Buckets used to hoist persons during vertical shaft sinking operations shall—

(a) Be securely attached to a crosshead when traveling in either direction between the lower and upper crosshead parking locations;

(b) Have overhead protection when the shaft depth exceeds 50 feet;

(d) Have devices to prevent accidental dumping where the bucket is supported by a bail attached to its lower half.

CFR