In order to participate in the ICAO Public Key Directory (PKD), States are required to follow the procedure outlined below:
Complete and send the Notice of Participation (Attachment A of the ICAO PKD MoU) to the Secretary General of ICAO . This Notice should also be sent via email to email@example.com;
Make arrangements with the ICAO Secretariat to pay the PKD registration fee as established in Attachment B of the ICAO PKD MoU;
Once payment is credited to ICAO's account, your State will receive the required documentation for establishing technical connections to the PKD, performing the required tests and fully participating in the PKD.
The signed original Notice of Participation should be sent to the following address:
International Civil Aviation Organization
999 Robert-Bourassa Boulevard
For more information, please contact ICAO-PKD@ICAO.INT