CFR›Title 21›Chapter I›Part 640›21 CFR Part 640 Subpart D Citation21 CFR Part 640 Subpart DContainsSections § 640.30–§ 640.34CorpusDaily eCFRDisplayed edition2026-08-04Last updated2026-08-04 Subpart D—Plasma Sections § 640.30 § 640.30 Plasma. § 640.31 § 640.31 Eligibility of donors. § 640.32 § 640.32 Collection of source material. § 640.33 § 640.33 Testing the blood. § 640.34 § 640.34 Processing. 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.