CFR›Title 21›Chapter II›Part 1316›Subpart B ContainsSections 1316.21–1316.24CorpusDaily eCFRDisplayed edition2026-06-05Last updated2026-06-05 Subpart B—Protection of Researchers and Research Subjects Sections 1316.21 § 1316.21 Definitions. 1316.22 § 1316.22 Exemption. 1316.23 § 1316.23 Confidentiality of identity of research subjects. 1316.24 § 1316.24 Exemption from prosecution for researchers. Authority21 U.S.C. 830, 871(b). Previous A Subpart A—Administrative Inspections Next C Subpart C—Enforcement Proceedings