CFR›Title 21›Chapter II›Part 1316›21 CFR Part 1316 Subpart B Citation21 CFR Part 1316 Subpart BContainsSections § 1316.21–§ 1316.24CorpusDaily eCFRDisplayed edition2026-09-18Last updated2026-09-18 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).Source36 FR 7820, Apr. 24, 1971, unless otherwise noted. Redesignated at 38 FR 26609, Sept. 24, 1973.