StacksVerified U.S. regulatory reference

30 CFR §57.19080

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
When tools, timbers, or other materials are being lowered or raised in a shaft by means of a bucket, skip, or cage, they shall be secured or so placed that they will not strike the sides of the shaft.