To participate in the ICAO PKD, States will have to take the following steps:

1. Complete and send to t​he ICAO Secretary General the Notice of Participation​ in the PKD included in Attachment A of the ICAO PKD MoU​. This Notice may be sent in advance via email or fax. Please see below for more information. 
   
   
2. Establish with the ICAO PKD Office the administrative arrangements necessary for paying the PKD Registration  Fee as established in Attachment B of the ICAO PKD MoU. This can be done by way of an invoice, grant, contribution, etc;  ​
   
   

3. Pay the Registration Fee to ICAO;

4. Once payment is credited to ICAO's account, you will receive the required documentation for establishing communication with the ICAO PKD and performing the required tests; 

5. Follow the procedures contained in the Procedures for the ICAO Public Key Directory.

    

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