...
To insure identifier uniqueness:
- https://refeds.org/assurance/ID/unique; or
- https://refeds.org/assurance/ID/eppn-unique-no-reassign
To insure sufficient identity proofing and credential issuance, renewal, and replacement:
- https://refeds.org/assurance/IAP/medium; or
- https://refeds.org/assurance/IAP/high