The Boeing Co., Huntington Beach, California, is awarded an $11,349,379 cost-plus-fixed-fee modification to previously awarded contract N00024-17-C-6307 to exercise options for engineering support services in support of the Extra Large Unmanned Undersea Vehicle program. Work will be performed in Huntington Beach, California (65%); Cockeysville, Maryland (20%); and Herndon, Virginia (15%), and is expected to be completed by September 2022. Fiscal 2020 research, development, test and evaluation (Navy) in the amount of $16,749 (1%) will be obligated at time of award and will expire at the end of the current fiscal year. Fiscal 2021 research, development, test and evaluation (Navy) in the amount of $3,077,761 (99%) will be obligated at time of award and will not expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, D.C., is the contracting activity.