Lockheed Martin, Rotary and Mission Systems, Moorestown, New Jersey, is awarded a $63,075,265 cost-plus-incentive-fee and cost-only modification to previously awarded contract N00024-19-C-5603 to exercise an option for Ship Self-Defense System combat system engineering support. Work will be performed in Moorestown, New Jersey (85%); and San Diego, California (15%), and is expected to be completed by December 2025. Fiscal 2025 research, development, test and evaluation (Navy) funds in the amount of $15,979,282 (98%); and fiscal 2025 operations and maintenance (Navy) funds in the amount of $366,865 (2%), will be obligated at the time of award and funds in the amount of $366,865 will expire at the end of the calendar year. Naval Sea Systems Command, Washington, D.C., is the contracting activity.