CFR›Title 24›Subtitle A›Part 50›Subpart A ContainsSections 50.1–50.4CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart A—General: Federal Laws and Authorities Sections 50.1 § 50.1 Purpose, authority, and applicability. 50.2 § 50.2 Terms and abbreviations. 50.3 § 50.3 Environmental policy. 50.4 § 50.4 Related Federal laws and authorities. Next B Subpart B—General Policy: Responsibilities and Program Coverage