# Transport Airplane and Propulsion Certification Modernization; Extension of Comment Period

**Action Urgency Score:** 20/100

| Field | Value |
|---|---|
| Agency | Transportation Department; Federal Aviation Administration |
| Type | Proposed rule |
| Action | Notice of proposed rulemaking (NPRM); Extension of comment period. |
| Published | 2026-08-06 |
| Effective | 2026-06-26 |
| Comments close | 2026-09-24 |
| Significant | No |
| CFR parts | 14 CFR 25 |
| Summary | This action extends the comment period for a NPRM titled "Transport Airplane and Propulsion Certification Modernization" that was published on June 26, 2026. In that document, FAA proposed 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 t |
| Document number | 2026-16025 |

## Why this score


Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/08/06/2026-16025/transport-airplane-and-propulsion-certification-modernization-extension-of-comment-period). Last refreshed: 2026-11-04T21:40:49.974Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.