{"data":{"id":"us/14-cfr-21.8","jurisdiction":"us","citation":"14 CFR 21.8","heading":"Approval of articles.","body":"If an article is required to be approved under this chapter, it may be approved—\n(a) Under a PMA;\n(b) Under a TSO;\n(c) In conjunction with type certification procedures for a product; or\n(d) In any other manner approved 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 A—General"],"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":"8d0f1deec3b944ae466ad91ae2d380188236ff3ad749eedbe52d566ceea4b8ef","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-21.7","next":"us/14-cfr-21.9"},"notice":"GroundRules: Original legal text. Not legal advice."}