CFR›Title 30›Chapter I›Part 57›Subpart U ContainsSections 57.23000–57.23004CorpusDaily eCFRDisplayed edition2026-05-12Last updated2026-05-12 Subpart U—Safety Program for Surface Mobile Equipment Sections 57.23000 § 57.23000 Purpose and scope. 57.23001 § 57.23001 Definitions. 57.23002 § 57.23002 Written safety program. 57.23003 § 57.23003 Requirements for written safety program. 57.23004 § 57.23004 Record and inspection. Source88 FR 87927, Dec. 20, 2023, unless otherwise noted. Previous T Subpart T—Safety Standards for Methane in Metal and Nonmetal Mines