21 CFR § 225.180
Labeling
June 25, 2020
Labels shall be received, handled, and stored in a manner that prevents label mixups and assures that the correct labels are used for the medicated feed. All deliveries of medicated feeds, whether bagged or in bulk, shall be adequately labeled to assure that the feed can be properly used.
[51 FR 7390, Mar. 3, 1986]