{"data":{"id":"us/14-cfr-21.51","jurisdiction":"us","citation":"14 CFR 21.51","heading":"Duration.","body":"A type certificate is effective until surrendered, suspended, revoked, or a termination date is otherwise established by the FAA.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—AIRCRAFT","PART 21—CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES","Subpart B—Type Certificates"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-14.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:20Z","sha256":"432561fd842b3569bbce90f46b948afa9788f6bb5be89365a9a0fc2da3dc7a49","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-21.50","next":"us/14-cfr-21.53"},"notice":"GroundRules: Original legal text. Not legal advice."}