Aircraft Certification Service (AIR)

Local Offices

Which Local Office should I contact?

As a result of 2023 AIR Reorganization:

  • The Integrated Certificate Management Division (AIR-500) was created to address certification, delegation, system oversight and continued operational safety functions with focus on commercial airplanes and engines.
  • Aircraft Certification Offices (ACOs) are now Certification Branches
  • Manufacturing Inspection District Offices (MIDOs) are now Certificate Management Sections.
  • Manufacturing Inspection Offices (MIOs) are now Certificate Management Branches


Last updated: Wednesday, August 09, 2023