Regulations last checked for updates: Oct 30, 2026

Title 21 - Food and Drugs last revised: Oct 21, 2026
All TitlesTitle 21Chapter IPart 338Subpart B - Subpart B—Active Ingredients
authority: 21 U.S.C. 321,351,352,353,355,360,371
source: 54 FR 6826, Feb. 14, 1989, unless otherwise noted.
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