General Dynamics Electric Boat Corp., Groton, Connecticut, is awarded a $16,216,005 cost-plus-fixed-fee modification to previously awarded contract N00024-21-C-2103 for engineering and technical design to support research and development concept formulation for current and future submarine platforms. Work will be performed in Annapolis, Maryland (11%); Syracuse, New York (10%); Lodi, New Jersey (9%); Chesapeake, Virginia (9%); Groton, Connecticut (8%); Peoria, Illinois (8%); Beloit, Wisconsin (8%); Bethlehem, Pennsylvania (6%); York, Pennsylvania (5%); Sparks, Nevada (5%); Warren, Massachusetts (5%); Monroe, North Carolina (5%); Florence, New Jersey (3%); Louisville, Kentucky (3%); Batavia, New York (3%); and Hatfield, Pennsylvania (2%), and is expected to be completed by September 2026. Fiscal 2024 research, development, test and evaluation (Navy) funding in the amount of $4,000,000 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.