Leidos Inc., Reston, Virginia, is awarded a $17,105,151 cost-plus-fixed-fee modification to previously awarded delivery order (N00024-23-F-6313) under indefinite-delivery/indefinite-quantity contract N00024-20-D-6337 to exercise an option for Overlord Unmanned Surface Vessels and Medium Unmanned Surface Vehicles operations and sustainment. Work will be performed in Reston, Virginia (51%); Virginia Beach, Virginia (26%); La Jolla, California (7%); Morgan City, Louisiana (6%); Lexington Park, Maryland (5%); Newport News, Virginia (4%); and Bethpage, New York (1%), and is expected to be completed by March 2025. Fiscal 2024 research, development, test and evaluation (Navy) funds in the amount of $2,500,000 will be obligated at time of award and will not expire at the end of the current fiscal year. Naval Sea Systems Command, Washington, D.C., is the contracting activity.