{"data":{"id":"us/14-cfr-29.815","jurisdiction":"us","citation":"14 CFR 29.815","heading":"Main aisle width.","body":"The main passenger aisle width between seats must equal or exceed the values in the following table:\nPassenger seating capacity Minimum main passenger aisle width\nLess than 25 inches from floor (inches) 25 Inches and more from floor (inches)\n10 or less 12 15\n11 through 19 12 20\n20 or more 15 20\n1 A narrower width not less than 9 inches may be approved when substantiated by tests found necessary by the Administrator.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—AIRCRAFT","PART 29—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT","Subpart D—Design and Construction"],"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":"2683dc99d12efcfef180a06b48ee8cfa1019a9be35f32bc39580cd99c69fd242","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-29.813","next":"us/14-cfr-29.831"},"notice":"GroundRules: Original legal text. Not legal advice."}