Antimicrobial Use and Stewardship

CDFA-AUS • 1220 N Street, Sacramento, CA 95814 • 916-576-0300

Livestock Drug Retailers

All Medically Important Antimicrobial Drugs (MIADs) will require a prescription or Veterinary Feed Directive (VFD) to be purchased or used in California after January 1, 2018. This change will affect certain MIADs that have been available over the counter (OTC).

AUS Regulation Status Update

Download AUS Regulation Status Update

All parties signed up on the AUS program listserv will receive a copy of the revised proposed regulations upon publication by the program. Other parties interested may request copy of the regulations by emailing Once published, the regulations will be available at:

CDFA Animal Health &
Food Safety Services