CFR›Title 21›Chapter I›21 CFR Part 3 Citation21 CFR Part 3ContainsSubparts Subpart A–Subpart BCorpusDaily eCFRDisplayed edition2026-09-14Last updated2026-09-14 PART 3—PRODUCT JURISDICTION Subparts Subpart A Subpart A—Assignment of Agency Component for Review of Premarket Applications Subpart B Subpart B [Reserved] Authority21 U.S.C. 321, 351, 353, 355, 360, 360c-360f, 360h-360j, 360gg-360ss, 360bbb-2, 371(a), 379e, 381, 394; 42 U.S.C. 216, 262, 264.Source56 FR 58756, Nov. 21, 1991, unless otherwise noted.