30 C.F.R. § 75.208 Warning devices.
Title 30 - Mineral Resources
Except during the installation of roof supports, the end of permanent roof support shall be posted with a readily visible warning, or a physical barrier shall be installed to impede travel beyond permanent support.
Title 30: Mineral Resources
PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES
Subpart C—Roof Support
§ 75.208 Warning devices.
