Effective July 23, 2017: AIR has realigned into a functionally based structure, and this page will no longer be updated. Please visit the AIR Transformation page to see how this reorganization enables AIR's comprehensive approach to increasing efficiency and effectiveness.

The Engine & Propeller Directorate (E&PD) is responsible for original type certification or changes to approved designs of aircraft engines and propellers, Technical Standard Order approvals of auxiliary power units, and assuring that aviation parts are manufactured to approved standards.  More »

Field Offices

Geographic service area:  Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Virginia, and West Virginia