CFR›Title 21›Chapter I›Part 251›Subpart A ContainsSections 251.1–251.2CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart A—General Provisions Sections 251.1 § 251.1 Scope of the part. 251.2 § 251.2 Definitions. Next B Subpart B—Section 804 Importation Program Proposals and Pre-Import Requests