Title 14, Code of Federal Regulations

Part #

Title

Part 21 Certification Procedures for Products and Parts
Section 21.17 Designation of applicable regulations
Part 21, subpart H Airworthiness Certificates
Part 23 Airworthiness Standards: Normal, Utility, Acrobatic, And Commuter Category Airplanes
Part 25 Airworthiness Standards: 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 39 Airworthiness Directives
Part 43, Appendix D Scope and Detail of Items to be Included in Annual and 100-Hour Inspections
Part 45, subpart C Nationality and Registration Marks
Part 47 Aircraft Registration
Part 91 General Operating and Flight Rules