Regulations last checked for updates: Apr 30, 2025

Title 21 - Food and Drugs last revised: Apr 28, 2025
All TitlesTitle 21Chapter IPart 640Subpart M - Subpart M—Definitions and Medical Supervision
authority: 21 U.S.C. 321,351,352,353,355,360,371; 42 U.S.C. 216,262,263,263a,264
source: 38 FR 32089, Nov. 20, 1973, unless otherwise noted.
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