NCP Repository The U.S. government repository of publicly available security checklists (or benchmarks) that provide detailed low level guidance on setting the security configuration of operating systems and applications.

800-53 Controls This NIST SP 800-53 database represents the security controls and associated assessment procedures defined in NIST SP 800-53 Revision 4 Recommended Security Controls for Federal Information Systems and Organizations.

SCAP Validated Tools This webpage contains a list of products and modules that have been validated by NIST as conforming to the Security Content Automation Protocol (SCAP) and its component standards.

SCAP The Security Content Automation Protocol (SCAP) is a synthesis of interoperable specifications derived from community ideas. This site contains information relating to SCAP validation, content, specifications and more.

USGCB This is the website for the United States Government Configuration Baseline (USGCB) initiative. The USGCB is a Federal government-wide initiative that provides guidance to agencies on what should be done to improve and maintain an effective configuration settings focusing primarily on security.