CFR›Title 7›Subtitle B›Chapter VI›Part 621›Subpart A ContainsSections 621.1–621.2CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart A—General Sections 621.1 § 621.1 Purpose. 621.2 § 621.2 Scope. Next B Subpart B—USDA Cooperative Studies