Lockheed Martin Corp., Rotary and Mission Systems, Riviera Beach, Florida, is awarded a $10,854,384 cost-plus-fixed-fee modification to previously awarded contract N00024-17-C-6308 to exercise options for Extra Large Unmanned Undersea Vehicle engineering support. Work will be performed in Riviera Beach, Florida, and is expected to be completed by September 2024. Fiscal 2023 research, development, test and evaluation (Navy) funds in the amount of $320,000 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.