{"data":{"id":"us/21-cfr-530.21","jurisdiction":"us","citation":"21 CFR 530.21","heading":"Prohibitions for food-producing animals.","body":"(a) FDA may prohibit the extralabel use of an approved new animal or human drug or class of drugs in food-producing animals if FDA determines that:\n(1) An acceptable analytical method needs to be established and such method has not been established or cannot be established; or\n(2) The extralabel use of the drug or class of drugs presents a risk to the public health.\n(b) A prohibition may be a general ban on the extralabel use of the drug or class of drugs or may be limited to a specific species, indication, dosage form, route of administration, or combination of factors.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER E—ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS","PART 530—EXTRALABEL DRUG USE IN ANIMALS","Subpart C—Specific Provisions Relating to Extralabel Use of Animal and Human Drugs in Food-Producing Animals"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"48f216b1717e4c8399330c6674119a1ecc3306b1cfeaecebf197303e5d28d4d3","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-530.20","next":"us/21-cfr-530.22"},"notice":"GroundRules: Original legal text. Not legal advice."}