CFR›Title 30›Chapter I›Part 57›Subpart B›Subject Group Precautions—Surface Only ContainsSection 57.3430CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Sections 57.3430 § 57.3430 Activity between machinery or equipment and the highwall or bank. Previous Precautions—Surface and Underground Precautions—Surface and Underground Next Precautions—Underground Only Precautions—Underground Only