If the request for a Modify Designator is for safety reasons, please click on the following button:
Safety Concerns Form
Select your State
Please select the State in which you are requesting a designator:
If your state name is not found on this pull down list, please contact your state aviation authority. Note: you can still purchase a Confirmation Letter PIN by clicking here.
Important: Please contact the FAA at callsigns@faa.gov before purchasing a PIN and submitting a request to ICAO. Once you are ready, click on the "Go to Store" button below.
Important: Please contact Kelly McIlwaine at NAV CANADA mcilwak@navcanada.ca before buying a PIN and submitting a request.
Please forward your 3LD PIN code to the ICAO Chinese delegation: china@icao.int