{"data":{"id":"us/14-cfr-26.31","jurisdiction":"us","citation":"14 CFR 26.31","heading":"Definitions.","body":"For purposes of this subpart—\n(a) Fleet Average Flammability Exposure has the meaning defined in Appendix N of part 25 of this chapter.\n(b) Normally Emptied means a fuel tank other than a Main Fuel Tank. Main Fuel Tank is defined in 14 CFR 25.981(b).","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—AIRCRAFT","PART 26—CONTINUED AIRWORTHINESS AND SAFETY IMPROVEMENTS FOR TRANSPORT CATEGORY AIRPLANES","Subpart D—Fuel Tank Flammability"],"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":"241f9f1d47ac685a3f18ed4bc0c323dbe99afe2b1fc25e51b8b8c049a58ad070","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-26.23","next":"us/14-cfr-26.33"},"notice":"GroundRules: Original legal text. Not legal advice."}