The Food and Drug Administration (FDA) has amended the new animal drug regulations to implement the veterinary feed directive (VFD) drugs section of the Animal Drug Availability Act of 1996 (ADAA). On June 3, 2015, the FDA published in the Federal Register the final rule revising the VFD regulations in 21 CFR Part 558. The final rule became effective on October 1, 2015. In September of 2015, FDA revised Guidance for Industry #120, Veterinary Feed Directive Regulation to reflect the VFD final rule.
A VFD drug is intended for use in animal feeds, and such use of the VFD drug is permitted only under the professional supervision of a licensed veterinarian.