Automated Continuing Evaluation System (ACES) Pilot. The Department of Homeland Security (DHS) is working with the Department of Defense to pilot the Automated Continuing Evaluation System (ACES). ACES conducts automated records checks to identify new issues of security concern for DHS personnel and contractors requiring a security clearance. During the ACES pilot, DHS will assess the feasibility of using ACES for initial and continuing evaluation of DHS security clearance holders. This Privacy Impact Assessment (PIA) is for the DHS implementation of the ACES Pilot.