21 CFR 225.202 - Formula, production, and distribution records.
Records shall be maintained identifying the formulation, date of mixing, and if not for own use, date of shipment. The records shall be adequate to facilitate the recall of specific batches of medicated feed that have been distributed. Such records shall be retained on the premises for 1 year following the date of last distribution.
Title 21 published on 2015-12-03.
No entries appear in the Federal Register after this date, for 21 CFR Part 225.