{"data":{"id":"us/21-cfr-530.4","jurisdiction":"us","citation":"21 CFR 530.4","heading":"Advertising and promotion.","body":"Nothing in this part shall be construed as permitting the advertising or promotion of extralabel uses in animals of approved new animal drugs or approved human drugs.","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 A—General Provisions"],"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":"0d72248e87f5c0a88a54cc536e557140687246d51b31a817031634d12e084b8c","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-530.3","next":"us/21-cfr-530.5"},"notice":"GroundRules: Original legal text. Not legal advice."}