Part 1 — Part 1 — Definitions and Abbreviations Part 3 — Part 3 — General Requirements Part 5 — Part 5 — Safety Management Systems Part 11 — Part 11 — Rulemaking Procedures Part 13 — Part 13 — Investigative and Enforcement Procedures Part 14 — Part 14 — Rules Implementing Equal Access Part 16 — Part 16 — Rules of Practice for Federally Assisted Airport Enforcement Proceedings Part 21 — Part 21 — Certification Procedures for Products and Articles Part 23 — Part 23 — Airworthiness Standards: Normal Category Airplanes Part 25 — Part 25 — Airworthiness Standards: Transport Category Airplanes Part 26 — Part 26 — Continued Airworthiness Part 27 — Part 27 — Airworthiness Standards: Normal Category Rotorcraft Part 29 — Part 29 — Airworthiness Standards: Transport Category Rotorcraft Part 31 — Part 31 — Airworthiness Standards: Manned Free Balloons Part 33 — Part 33 — Aircraft Engines Part 34 — Part 34 — Fuel Venting and Exhaust Emission Requirements Part 35 — Part 35 — Airworthiness Standards: Propellers Part 36 — Part 36 — Noise Standards Part 39 — Part 39 — Airworthiness Directives Part 43 — Part 43 — Maintenance, Preventive Maintenance, Rebuilding, and Alteration Part 45 — Part 45 — Identification and Registration Marking Part 47 — Part 47 — Aircraft Registration Part 48 — Part 48 — Drone Registration Part 49 — Part 49 — Recording of Aircraft Titles Part 60 — Part 60 — Flight Simulation Training Device Initial and Continuing Qualification Part 61 — Part 61 — Certification: Pilots, Flight Instructors, and Ground Instructors Part 63 — Part 63 — Flight Crewmembers Other Than Pilots Part 65 — Part 65 — Airmen Other Than Flight Crewmembers Part 67 — Part 67 — Medical Standards and Certification Part 68 — Part 68 — BasicMed Part 71 — Part 71 — Airspace Part 73 — Part 73 — Special Use Airspace Part 77 — Part 77 — Safe, Efficient Use, and Preservation of Navigable Airspace Part 91 — Part 91 — General Operating and Flight Rules Part 93 — Part 93 — Special Air Traffic Rules Part 95 — Part 95 — IFR Altitudes Part 97 — Part 97 — Standard Instrument Procedures Part 99 — Part 99 — Security Control of Air Traffic Part 101 — Part 101 — Moored Balloons, Kites, Amateur Rockets Part 103 — Part 103 — Ultralight Vehicles Part 105 — Part 105 — Parachute Operations Part 107 — Part 107 — Small Unmanned Aircraft Systems Part 109 — Part 109 — Advanced Air Mobility Part 110 — Part 110 — Airspace Integration Part 117 — Part 117 — Flight and Duty Limitations Part 119 — Part 119 — Certification: Air Carriers Part 121 — Part 121 — Domestic, Flag, and Supplemental Operations Part 125 — Part 125 — Large Aircraft Operations Part 129 — Part 129 — Foreign Air Carriers Part 133 — Part 133 — Rotorcraft External-Load Operations Part 135 — Part 135 — Commuter and On-Demand Operations Part 136 — Part 136 — Commercial Air Tours Part 137 — Part 137 — Agricultural Aircraft Operations Part 139 — Part 139 — Airport Certification Part 141 — Part 141 — Pilot Schools Part 142 — Part 142 — Training Centers Part 145 — Part 145 — Repair Stations Part 147 — Part 147 — Aviation Maintenance Technician Schools Part 150 — Part 150 — Airport Noise Compatibility Planning Part 151 — Part 151 — Airport Aid Program Part 152 — Part 152 — Airport Aid Part 153 — Part 153 — Airport Operations Part 155 — Part 155 — Release of Airport Property Part 156 — Part 156 — State Block Grant Pilot Program Part 157 — Part 157 — Notice of Construction Part 161 — Part 161 — Notice and Approval of Airport Noise and Access Restrictions Part 169 — Part 169 — Expenditures of Federal Funds for Nonmilitary Airports Part 171 — Part 171 — Non-Federal Navigation Facilities Part 183 — Part 183 — Representatives of the Administrator Part 185 — Part 185 — Testimony by Employees Part 187 — Part 187 — Fees Part 189 — Part 189 — Use of Federal Aviation Administration Communication System Part 193 — Part 193 — Protection of Voluntarily Submitted Information Part 198 — Part 198 — Northrup Rice Aviation Institute