30 CFR 77.204 : Mineral Resources (§ 1.1 To Parts 1291-1299) — (§ 1.1 To Parts 105-199) — Mine Safety And Health Administration, Department Of Labor (§ 1.1 To Parts 105-199) — Coal Mine Safety And Health (§ 70.1 To § 90.301) — Mandatory Safety Standards, Surface Coal Mines And Surface Work Areas Of Underground Coal Mines (§ 77.1 To Subpart U) — Surface Installations (§ 77.200 To § 77.217) — Openings in surface installations; safeguards.

4 Aug 2016

Openings in surface installations through which men or material may fall shall be protected by railings, barriers, covers or other protective devices.

30 CFR 77.204