NIST: Special Publication 800-53A, Revision 1 (FPD), Guide for Assessing the Security Controls in Federal Information Systems and Organizations.
06.05.2010
The final draft of Special Publication 800-53A, Revision 1 provides guidelines for developing security assessment plans and associated security control assessment procedures that are consistent with Special Publication 800-53, Revision 3, Recommended Security Controls for Federal Information Systems and Organizations, August 2009 (including updates as of 05-01-2010).