CFR›Title 10›Chapter II›Part 221›Subpart C ContainsSection 221.21CorpusDaily eCFRDisplayed edition2026-10-14Last updated2026-10-14 Subpart C—Definitions Sections 221.21 § 221.21 Definitions. Previous B Subpart B—Exclusions Next D Subpart D—Administrative Procedures and Sanctions