Each physical person can only be registered once in SUPR. If you register multiple times, we will have to ask you about this and merge your records.
If you are already in SUPR, please login and change your contact information instead of registering again. If needed, request a password to be able to log in. If that does not work but you know you are present in SUPR, use the support button.
If you have a federated identity, you can register with it and get it connected to your SUPR user so you will be able to login using it.
If the federated identity is verified enough, you will also be able to accept User Agreements using it.
If you do not have a working federated identity, you can register anyway. You will be able to connect your SUPR person to your federated identity later.