CFR›Title 20›Chapter IX›Part 1001›Subpart A ContainsSections 1001.100–1001.101CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart A—Purpose and Definitions Sections 1001.100 § 1001.100 Purpose and scope of subpart. 1001.101 § 1001.101 Definitions of terms used in subpart. Next B Subpart B—Federal Responsibilities