CFR›Title 14›Chapter I›Part 25›Subpart A ContainsSections 25.1–25.5CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Subpart A—General Sections 25.1 § 25.1 Applicability. 25.2 § 25.2 Special retroactive requirements. 25.3 § 25.3 Special provisions for ETOPS type design approvals. 25.4 § 25.4 Definitions. 25.5 § 25.5 Incorporations by reference. Next Appendix A to Part 25 Appendix A to Part 25