21 C.F.R. § 1271.215 Recovery.
Title 21 - Food and Drugs
If you are an establishment that recovers HCT/Ps, you must recover each HCT/P in a way that does not cause contamination or cross-contamination during recovery, or otherwise increase the risk of the introduction, transmission, or spread of communicable disease through the use of the HCT/P.
Title 21: Food and Drugs
PART 1271—HUMAN CELLS, TISSUES, AND CELLULAR AND TISSUE-BASED PRODUCTS
Subpart D—Current Good Tissue Practice
§ 1271.215 Recovery.