30 C.F.R. § 56.11012 Protection for openings around travelways.
Title 30 - Mineral Resources
Openings above, below, or near travelways through which persons or materials may fall shall be protected by railings, barriers, or covers. Where it is impractical to install such protective devices, adequate warning signals shall be installed.
Title 30: Mineral Resources
PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES
Subpart J—Travelways
§ 56.11012 Protection for openings around travelways.

