30 CFR Part 57Public Domain
§ 57.9360 — Shelter holes
Subpart H — Loading, Hauling, and Dumping
(a)Shelter holes shall be—
(1)Provided at intervals adequate to assure the safety of persons along underground haulageways where continuous clearance of at least 30 inches cannot be maintained from the farthest projection of moving equipment on at least one side of the haulageway; and
(2)At least four feet wide, marked conspicuously, and provide a minimum 40-inch clearance from the farthest projection of moving equipment.
(b)Shelter holes shall not be used for storage unless a 40-inch clearance is maintained.
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.