{"data":{"id":"us/21-cfr-640.13","jurisdiction":"us","citation":"21 CFR 640.13","heading":"Collection of the blood.","body":"(a) The source blood shall be collected as prescribed in § 640.4.\n(b) Source blood may also be derived from Whole Blood manufactured in accordance with applicable provisions of this subchapter.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER F—BIOLOGICS","PART 640—ADDITIONAL STANDARDS FOR HUMAN BLOOD AND BLOOD PRODUCTS","Subpart B—Red Blood Cells"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"8106945abc86b2a09f5d29375dbebc7fca9739ca02d230cf87d8edc65cbe3ead","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-640.12","next":"us/21-cfr-640.14"},"notice":"GroundRules: Original legal text. Not legal advice."}