Code of Federal Regulations > Title 14 > Chapter I > Part 33 - PART 33—AIRWORTHINESS STANDARDS: AIRCRAFT ENGINES

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

Subpart A [§ 33.1 - § 33.8] - Subpart A—General

Subpart B [§ 33.11 - § 33.29] - Subpart B—Design and Construction; General

Subpart C [§ 33.31 - § 33.39] - Subpart C—Design and Construction; Reciprocating Aircraft Engines

Subpart D [§ 33.41 - § 33.57] - Subpart D—Block Tests; Reciprocating Aircraft Engines

Subpart E [§ 33.61 - § 33.79] - Subpart E—Design and Construction; Turbine Aircraft Engines

Subpart F [§ 33.81 - § 33.99] - Subpart F—Block Tests; Turbine Aircraft Engines

Subpart G [§ 33.201 - § 33.201] - Subpart G—Special Requirements: Turbine Aircraft Engines

Appendix Appendix A - Appendix A to Part 33—Instructions for Continued Airworthiness

Appendix Appendix B - Appendix B to Part 33—Certification Standard Atmospheric Concentrations of Rain and Hail

Appendix Appendix C - Appendix C to Part 33 [Reserved]

Appendix Appendix D - Appendix D to Part 33—Mixed Phase and Ice Crystal Icing Envelope (Deep Convective Clouds)