CFR›Title 21›Chapter I›Part 203›Subpart A ContainsSections 203.1–203.3CorpusDaily eCFRDisplayed edition2026-05-18Last updated2026-05-18 Subpart A—General Provisions Sections 203.1 § 203.1 Scope. 203.2 § 203.2 Purpose. 203.3 § 203.3 Definitions. Next B Subpart B—Reimportation