L3Harris Technologies Inc., Colorado Springs, Colorado, has been awarded a $76,214,821 modification (P00315) to a previously awarded contract (FA8823-20-C-0004) for the National Space Defense Center and Distributed Space Command and Control System Option Year Six sustainment, including depot-level maintenance, mission software support, hardware modification support, sustaining engineering analysis, cybersecurity support, and technical data management and limited supply support. The modification brings the total cumulative face value of the contract to $1,191,204,658 from $1,114,989.837. Work will be performed at Eglin Air Force Base, Florida; Colorado Springs, Colorado; Vandenberg Space Force Base, California; and Dahlgren, Virginia, and is expected to be completed by Jan. 31, 2026. Fiscal 2025 operation and maintenance funds in the amount of $28,837,627 are being obligated at time of award. The Space Systems Center Directorate of Contracting, Peterson SFB, Colorado, is the contracting activity.