30 C.F.R. § 57.3400 Secondary breakage.
Title 30 - Mineral Resources
Prior to secondary breakage operations, the material to be broken, other than hanging material, shall be positioned or blocked to prevent movement which would endanger persons in the work area. Secondary breakage shall be performed from a location which would not expose persons to danger.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart B—Ground Control
Precautions—Surface and Underground
§ 57.3400 Secondary breakage.
