General Dynamics Electric Boat Co., Groton, Connecticut, was awarded $15,715,111 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 the continental U.S. and is expected to be completed by June 2026. Fiscal 2023 research, development, test, and evaluation (Navy) funds in the amount of $15,715,111 will be obligated at time of award and will not expire at the end of the current fiscal year. This contract was not competitively procured. The statutory authority for this sole source award is in accordance with Federal Acquisition Regulation 6.302-1(a)(2)(iii) – only one responsible source and no other supplies or services will satisfy agency requirements. The Naval Sea Systems Command, Washington, D.C., is the contracting activity. (Awarded April 28, 2023)