SUBCHAPTER C—AIRCRAFT (parts 21 to 50)
- PART 21—CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS
- PART 23—AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES
- PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES
- PART 26—CONTINUED AIRWORTHINESS AND SAFETY IMPROVEMENTS FOR TRANSPORT CATEGORY AIRPLANES
- PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT
- PART 29—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT
- PART 31—AIRWORTHINESS STANDARDS: MANNED FREE BALLOONS
- PART 33—AIRWORTHINESS STANDARDS: AIRCRAFT ENGINES
- PART 34—FUEL VENTING AND EXHAUST EMISSION REQUIREMENTS FOR TURBINE ENGINE POWERED AIRPLANES
- PART 35—AIRWORTHINESS STANDARDS: PROPELLERS
- PART 36—NOISE STANDARDS: AIRCRAFT TYPE AND AIRWORTHINESS CERTIFICATION
- PART 39—AIRWORTHINESS DIRECTIVES
- PART 43—MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING, AND ALTERATION
- PART 45—IDENTIFICATION AND REGISTRATION MARKING
- PART 47—AIRCRAFT REGISTRATION
- PART 49—RECORDING OF AIRCRAFT TITLES AND SECURITY DOCUMENTS