CFR›Title 9›Chapter I›Part 101 ContainsSections 101.1–101.7CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 101—DEFINITIONS Sections 101.1 § 101.1 Applicability. 101.2 § 101.2 Administrative terminology. 101.3 § 101.3 Biological products and related terms. 101.4 § 101.4 Labeling terminology. 101.5 § 101.5 Testing terminology. 101.6 § 101.6 Cell cultures. 101.7 § 101.7 Seed organisms. Authority21 U.S.C. 151-159; 7 CFR 2.22, 2.80, and 371.4.Source38 FR 8426, Apr. 2, 1973, unless otherwise noted. Previous 99 Part 99—Rules of Practice Governing Proceedings Under Certain Acts Next 102 Part 102—Licenses for Biological Products