CFR›Title 21›Chapter I›Part 640›21 CFR Part 640 Subpart L Citation21 CFR Part 640 Subpart LContainsSection § 640.120CorpusDaily eCFRDisplayed edition2026-08-04Last updated2026-08-04 Subpart L—Alternative Procedures Sections § 640.120 § 640.120 Alternative procedures. Authority21 U.S.C. 321, 351, 352, 353, 355, 360, 371; 42 U.S.C. 216, 262, 263, 263a, 264.Source38 FR 32089, Nov. 20, 1973, unless otherwise noted.