With engineering and testing facilities in both Niceville, FL and Tucson, AZ, Applied Systems Engineering Incorporated (ASET) have navigation systems in used in a various USAF and USN aircraft and weapons. The firm also has operational flight software performing in several inventory weapon systems and weapon launchers. In 2020 it had been announced that Applied Systems Engineering had been awarded a $48+M indefinite- delivery/indefinite-quantity, firm-fixed-price delivery orders contract with a five-year ordering period to provide Selective Availability Anti-Spoofing Module (SAASM) Advanced Tactical Navigator (ATACNAV) units, SAASM ATACNAV-High Accuracy (HA) units, SAASM ATACNAV-HA-Single Enclosure. ATACNAV mini purchases, ATACNAV units, reconfigurable avionics test sets and global positioning system military code receivers. In addition to procurement of ATACNAV units, system upgrades and repairs from Applied Systems Engineering will be required throughout the life of the contract. The program is in support of the Weapons Control and Integration Department (H) of the Naval Surface Warfare Center, Dahlgren Division and Battle Management Systems Program. Work to be performed in Niceville, FL, is expected to be completed by June 2025. Contract was procured sole-source in accordance with 10 U.S. Code 2304c1, with one responsible source. The Naval Surface Warfare Center, Dahlgren Division, Dahlgren, Virginia, is the contracting activity (N00178-20-D-4400).