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Regulations last checked for updates: Feb 06, 2026
Title 21 - Food and Drugs last revised: Dec 18, 2026
All Titles
Title 21
Chapter I
Part 520 - PART 520—ORAL DOSAGE FORM NEW ANIMAL DRUGS
authority:
21 U.S.C. 360b.
source:
40 FR 13838, Mar. 27, 1975, unless otherwise noted.
cite as:
21 CFR 520.540
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