Transport Airplane and Propulsion Certification Modernization

What it does

FAA proposes to amend various airworthiness regulations to modernize certain certification standards for transport category airplanes and propulsion systems. This rule would be both deregulatory and relieving by reducing the number of exemptions, special conditions, and equivalent level of safety findings required during the certification process. FAA expects that this proposal would reduce certification costs and time to certify new and changed products for both industry and FAA while maintaining or increasing the level of safety provided by the current regulations. FAA proposes to remove Special Federal Aviation Regulation (SFAR) No. 109 from part 25 and relocate certain of its requirements. Finally, this action would address industry and National Transportation Safety Board recommendations while also harmonizing FAA's regulations with international standards.

The Federal Aviation Administration's summary, as published in the Federal Register.

What it would change

1 part of Title 14 of the Code of Federal Regulations:

14 CFR 25

Before this

No earlier Federal Register document under regulation identifier 2120-AL42 since Jan. 1, 2025.

Since then:

• Aug. 6, 2026 Notice of proposed rulemaking (NPRM); Extension of comment period. Transport Airplane and Propulsion Certification Modernization; Extension of Comment Period

What happens next and when

Send comments on or before August 25, 2026.

The agency's dates, word for word.

Check it yourself

• The document in the Federal Register
• Docket FAA-2026-0430 on Regulations.gov
• Title 14 on eCFR

The record as published

Source: the Federal Register (public domain). The document in the Federal Register