30 CFR Part 57Public Domain
§ 57.19101 — Stopblocks and derail switches
Subpart R — Personnel Hoisting
Positive stopblocks or a derail switch shall be installed on all tracks leading to a shaft collar or landing.
Public Domain: 30 CFR Part 57 (MSHA Safety and Health Standards — Underground Metal and Nonmetal Mines) is a U.S. government publication and is not subject to copyright. Text extracted from the official source ↗. Figures are served from the eCFR; if one does not load, use the link in its place.