CFR›Title 30›Chapter I›Part 56›Subpart B›Subject Group Mining Methods ContainsSections 56.3130–56.3131CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Sections 56.3130 § 56.3130 Wall, bank, and slope stability. 56.3131 § 56.3131 Pit or quarry wall perimeter. Previous 56.3000 § 56.3000 Definitions. Next Precautions Precautions