Aircraft Certification Service (AIR) Draft Policy Open for Comment
| Document Title: | PS-AIR-21-02, Guidance for Processing Airworthiness Standard Non-compliances |
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| Summary: | This policy statement establishes Federal Aviation Administration (FAA) policy for processing non-compliances with airworthiness standards. Its purpose is to provide guidance to FAA personnel and design approval holders (DAH) for consistent application, so that DAHs and applicants can expect predictable responses from the FAA. The policy provides criteria for what constitutes an airworthiness standard non-compliance, a process to determine if a discrepancy meets the non-compliance criteria, actions to close items that do not meet the criteria, and actions to address items that meet the criteria. |
| Documents for Download: | Draft Document Comment Matrix |
| Comments Due: | May 18, 2026 |
| How to Comment: | Email comments to: 9-AVS-TechWriters@faa.gov |
| Document Title: | PS-AIR-600-20-05, Use of Metallic Materials Properties Development and Standardization (MMPDS) Handbook |
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| Summary: | This policy statement (PS) explains how the MMPDS Handbook can be used to show compliance with FAA material strength regulations. It updates and replaces the 2006 policy, clarifies that both current and older handbook versions can be used if no safety issues exist, and expands the applicable regulations. It also allows use of MMPDS data for nonconventional materials (like additive manufacturing), provided applicants supply supporting evidence to confirm material equivalency. |
| Documents for Download: | Draft Document Comment Matrix |
| Comments Due: | May 28, 2026 |
| How to Comment: | Email comments to: 9-AVS-TechWriters@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: Monday, April 13, 2026