Aircraft Certification Service (AIR) Draft Advisory Circulars (ACs) Open for Comment
| Document Title: | AC 25-19B, Certification Maintenance Requirements |
|---|---|
| Summary: | This advisory circular (AC) describes an acceptable means for obtaining Federal Aviation Administration (FAA) airworthiness approval for certification maintenance requirements (CMRs). It includes the selection, documentation, control, and management of CMRs. This AC also provides a method for coordinating these CMRs under a maintenance review board (MRB), if an MRB is convened. |
| Documents for Download: | Draft Document Comment Matrix |
| Comments Due: | May 8, 2026 |
| How to Comment: | Email Comments to: Sekhar.Vaidyanath@faa.gov |
| Document Title: | AC 21-44B, Issuance of Export Airworthiness Approvals Under 14 CFR Part 21 Subpart L |
|---|---|
| Summary: | This advisory circular (AC) provides information and guidance on how to show compliance with Title 14 of the Code of Federal Regulations (14 CFR) Part 21, subpart L, Export Airworthiness Approvals. This AC is not mandatory and does not constitute a regulation. |
| Documents for Download: | Draft Document Comment Matrix |
| Comments Due: | May 12, 2026 |
| How to Comment: | Email Comments to: Michael.Meads@faa.gov |
Related Information
- Final Aircraft Certification advisory circulars, other policy documents, and technical standard orders (TSOs) are available on FAA's Dynamic Regulatory System (DRS)
- Advisory Circulars (ACs)
- FAA Regulations
- Orders & Notices
- Policy & Guidance
- To comment on rulemaking documents, please visit the DOT Docket Management System.
Last updated: Wednesday, April 15, 2026