{"data":{"id":"us/21-cfr-514.121","jurisdiction":"us","citation":"21 CFR 514.121","heading":"Service of notices and orders.","body":"All notices and orders under this subchapter E and section 512 of the act pertaining to new animal drug applications shall be served:\n(a) In person by any officer or employee of the Department designated by the Commissioner; or\n(b) By mailing the order by certified mail addressed to the applicant or respondent at his last known address in the records of the Food and Drug Administration.","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 514—NEW ANIMAL DRUG APPLICATIONS","Subpart B—Administrative Actions on Applications"],"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":"5ad659a1b4b7c484443463c2062c2bc361b305ce61010b38be40db86cfc8ff98","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-514.120","next":"us/21-cfr-514.200"},"notice":"GroundRules: Original legal text. Not legal advice."}