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Regulations last checked for updates: May 14, 2025
Title 21 - Food and Drugs last revised: May 12, 2025
All Titles
Title 21
Chapter I
Part 660
Subpart C - Subpart C—Blood Grouping Reagent
§ 660.20 - Blood Grouping Reagent.
§ 660.21 - Processing.
§ 660.22 - Potency requirements with reference preparations.
§ 660.25 - Potency tests without reference preparations.
§ 660.26 - Specificity tests and avidity tests.
§ 660.28 - Labeling.
authority:
21 U.S.C. 321
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42 U.S.C. 216
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