Steps in acquiring .AERO domain name:
a. Get a Unique Identifying Number (UIN) — ENS_AuthID and ENS_AuthKey from the AERO Sponsor — SITA company.
A UIN is assigned permanently and may be used for registration of multiple .AERO domains.
b. Enter into service delivery contract with RU-CENTER (if not signed yet).
c. Order domain registration service.
Domain registration order is available in "Manage your account → Orders". The order you made will start processing, if there are enough funds on your personal account to cover the service. The notification about order execution will be emailed to you.
d. Pay for the order.
Effect pre-payment with reference to the form number.
This will confirm that you accept the contract terms.