Certified Responsible Antibiotic Use The Certified Responsible Antibiotic Use (CRAU) standard is the first responsible use standard certified by the U.S. Department of Agriculture that allows for minimal use of medically important antibiotics in poultry production, and only those prescribed by a licensed veterinarian. Many of the largest poultry producers are CRAU certified. We’re excited to announce that we will be expanding our CRAU standard to include beef and pork. Learn more. Join us today!