CFR›Title 21›Chapter I›Part 660›Subpart D ContainsSections 660.30–660.36CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart D—Reagent Red Blood Cells Sections 660.30 § 660.30 Reagent Red Blood Cells. 660.31 § 660.31 Eligibility of donor. 660.32 § 660.32 Collection of source material. 660.33 § 660.33 Testing of source material. 660.34 § 660.34 Processing. 660.35 § 660.35 Labeling. 660.36 § 660.36 Samples and protocols. Source52 FR 37450, Oct. 7, 1987, unless otherwise noted. Previous C Subpart C—Blood Grouping Reagent Next E Subpart E—Hepatitis B Surface Antigen