NIST announces the release of NIST Interagency Report (NISTIR) 7817, A Credential Reliability and Revocation Model for Federated Identities. NISTIR 7817 describes and classifies the different types of identity providers serving federations. For each classification, the document identifies perceived improvements or gabs when the credentials are used in authentication services and recommends counter measures to eliminate some of identified gaps. With the countermeasures as the basis, the document suggests a Universal Credential Reliability and Revocation Services (URRS) model that strives improve authentication services for federations.