Active Directory Federation Services (ADFS) was included in the Common Criteria validation of Microsoft Windows XP and Windows Server 2003 R2. Please see the Security Target (ST) for details:

http://www.niap-ccevs.org/cc-scheme/st/vid10184/

Guidance documentation is available to download here:

http://www.microsoft.com/technet/security/prodtech/windowsserver2003/ccc/default.mspx