Rockwell Collins Simulation and Training Solutions, Cedar Rapids, Iowa, is awarded a $31,359,881 firm-fixed-price modification (P00001) to a previously awarded contract (N6134021C0017). This modification extends services and adds hours to implement Delta Software System Configuration (DSSC) #4 tactical baseline updates and concurrency enhancements, to include technical data, on the E-2D Hawkeye Integrated Training System, flight, tactics, maintenance, and E-2D Distributed Readiness Trainer (D-DRT) devices. Additionally, this modification exercises options to provide integration of the DSSC #4 on weapons system trainers and flight devices, DSSC #4 Operating Systems upgrades on flight and D-DRT devices, and technical data, as well as provide DSSC #4 training, to include maintenance, user, and cyber security/software support. Work will be performed in Point Mugu, California (45%); Norfolk, Virginia (30%); Sterling, Virginia (15%); and Iwakuni, Japan (10%), and is expected to be completed in September 2024. Fiscal 2022 aircraft procurement (Navy) funds in the amount of $16,530,372; fiscal 2021 aircraft procurement (Navy) funds in the amount of $755,186; and fiscal 2020 aircraft procurement (Navy) funds in the amount of $14,074,323 will be obligated at the time of award, $14,074,323.00 of which will expire at the end of the current fiscal year. The Naval Air Warfare Center Training Systems Division, Orlando, Florida, is the contracting activity.