PART	Title	Time
31	PART 31—AIRWORTHINESS STANDARDS: MANNED FREE BALLOONS	July 7, 2025
33	PART 33—AIRWORTHINESS STANDARDS: AIRCRAFT ENGINES	July 7, 2025
34	PART 34—FUEL VENTING AND EXHAUST EMISSION REQUIREMENTS FOR TURBINE ENGINE POWERED AIRPLANES	July 7, 2025
35	PART 35—AIRWORTHINESS STANDARDS: PROPELLERS	July 7, 2025
36	PART 36—NOISE STANDARDS: AIRCRAFT TYPE AND AIRWORTHINESS CERTIFICATION	July 7, 2025
38	PART 38—AIRPLANE FUEL EFFICIENCY CERTIFICATION	July 7, 2025
39	PART 39—AIRWORTHINESS DIRECTIVES	Dec. 28, 2023
43	PART 43—MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING, AND ALTERATION	Dec. 28, 2023
45	PART 45—IDENTIFICATION AND REGISTRATION MARKING	Dec. 28, 2023
47	PART 47—AIRCRAFT REGISTRATION	Dec. 28, 2023
48	PART 48—REGISTRATION AND MARKING REQUIREMENTS FOR SMALL UNMANNED AIRCRAFT	July 7, 2025
49	PART 49—RECORDING OF AIRCRAFT TITLES AND SECURITY DOCUMENTS	Dec. 28, 2023
60	PART 60—FLIGHT SIMULATION TRAINING DEVICE INITIAL AND CONTINUING QUALIFICATION AND USE	July 1, 2025
61	PART 61—CERTIFICATION: PILOTS, FLIGHT INSTRUCTORS, AND GROUND INSTRUCTORS	Nov. 21, 2024
63	PART 63—CERTIFICATION: FLIGHT CREWMEMBERS OTHER THAN PILOTS	December 27, 2023