{"data":{"id":"us/14-cfr-33.31","jurisdiction":"us","citation":"14 CFR 33.31","heading":"Applicability.","body":"This subpart prescribes additional design and construction requirements for reciprocating aircraft engines.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—AIRCRAFT","PART 33—AIRWORTHINESS STANDARDS: AIRCRAFT ENGINES","Subpart C—Design and Construction; Reciprocating Aircraft Engines"],"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":"a74b740d62564f003cfaf6ed4e24557f21024b71b7e88695c545efd941bfb834","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-33.29","next":"us/14-cfr-33.33"},"notice":"GroundRules: Original legal text. Not legal advice."}