CFR›Title 50›Chapter I›Part 25›Subpart A ContainsSections 25.11–25.13CorpusDaily eCFRDisplayed edition2026-05-08Last updated2026-05-08 Subpart A—Introduction Sections 25.11 § 25.11 Purpose of regulations. 25.12 § 25.12 What do these terms mean? 25.13 § 25.13 Other applicable laws. Next B Subpart B—Administrative Provisions