The FAA aircraft local field offices listed below can provide you direct personal assistance to address your particular situation in a timely manner:

• Certification Branches (formerly Aircraft Certification Offices/ACOs) are staffed with FAA Aviation Safety Engineers (ASE) to assist with:
  • Design approvals and certificate management
  • U.S. production approvals
  • Engineering and analysis questions
  • Investigating and reporting aircraft accidents, incidents, and service difficulties
  • Designated Engineering Representatives (DER) oversight
• Certificate Management Sections (formerly Manufacturing Inspection District Offices/MIDOs) are staffed with FAA Aviation Safety Inspectors (ASI) to assist with:
  • Manufacturing and production certification
  • Airworthiness certification
  • Manufacturing facilities approval holder issues
  • Manufacturing Designated Airworthiness Representatives (DAR-F) oversight
• Certificate Management Branches (formerly Manufacturing Inspection Offices/MIOs) provide:
  • Oversight of Certificate Management Sections
  • Management of geographically located production facilities and designees
• Flight Standards District Offices (FSDO) are staffed to assist with:
  • Airmen certification (licensing), to include pilots, mechanics, I.A.s, repairmen, dispatchers, and parachute riggers
  • Aircraft permits and other certification issues
  • Air carrier certification and operations
  • Accident investigations
  • Enforcement and investigation issues
• International Field Offices (IFO):
  • Authorize operations to the United States by foreign air carriers
  • Approve maintenance programs and MELs and authorize certain other operations for U.S. registered aircraft used by foreign air carriers
  • Conduct surveillance of foreign air carriers operating into the United States
  • Conduct certification and surveillance of U.S. Foreign Repair Stations

Note: 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