The Security Assertion Markup Language (SAML) [OASIS.saml-core-2.0-os] was designed in order to carry an extensible set of attributes about a subject. Since SAML is extensible in the attribute space, ABFAB has no immediate needs to update the core SAML specifications for our work. It will be necessary to update IdPs that need to return SAML Assertions to RPs and for both the IdP and the RP to implement a new SAML profile designed to carry SAML Assertions in AAA. The new profile can be found in [RFC7833]. As SAML statements will frequently be large, RADIUS servers and clients that deal with SAML statements will need to implement [RFC7499].