General Dynamics Electric Boat Corp., Groton, Connecticut, is awarded an $18,811,257 cost-plus-fixed-fee modification to previously awarded contract N00024-20-C-2120 for lead yard support and development studies and design efforts related to Virginia-class submarines. Work will be performed in Tucson, Arizona (39%); South El Monte, California (31%); Bethlehem, Pennsylvania (21%); and Cheswick, Pennsylvania (9%), and is expected to be completed by November 2024. Fiscal 2022 research, development, test, and evaluation (Navy) funds in the amount of $6,000,000 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.