SECTION	Title	Time
Appendix B	Appendix B to Part 33—Certification Standard Atmospheric Concentrations of Rain and Hail	July 7, 2025
Appendix C	Appendix C to Part 33 [Reserved]	July 7, 2025
Appendix D	Appendix D to Part 33—Mixed Phase and Ice Crystal Icing Envelope (Deep Convective Clouds)	July 7, 2025
§ 33.1	§ 33.1 Applicability.	July 24, 2026
§ 33.3	§ 33.3 General.	July 24, 2026
§ 33.4	§ 33.4 Instructions for Continued Airworthiness.	July 24, 2026
§ 33.5	§ 33.5 Instruction manual for installing and operating the engine.	July 24, 2026
§ 33.7	§ 33.7 Engine ratings and operating limitations.	July 24, 2026
§ 33.8	§ 33.8 Selection of engine power and thrust ratings.	July 24, 2026
§ 33.11	§ 33.11 Applicability.	July 24, 2026
§ 33.13	§ 33.13 [Reserved]	July 24, 2026
§ 33.15	§ 33.15 Materials.	July 24, 2026
§ 33.17	§ 33.17 Fire protection.	July 24, 2026
§ 33.19	§ 33.19 Durability.	July 24, 2026
§ 33.21	§ 33.21 Engine cooling.	July 24, 2026