StacksVerified U.S. regulatory reference

30 CFR §57.9360

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Shelter holes shall be—
    1. (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. (2)At least four feet wide, marked conspicuously, and provide a minimum 40-inch clearance from the farthest projection of moving equipment.
  2. (b)Shelter holes shall not be used for storage unless a 40-inch clearance is maintained.