General Dynamics Electric Boat Corp., Groton, Connecticut, is awarded a $697,894,932 cost-plus-incentive-fee modification to previously awarded contract N00024-20-C-4312 for the maintenance, repair, and modernization efforts to execute the engineered overhaul of USS Hartford (SSN 768). Work will be performed in Groton, Connecticut, and is expected to be completed by October 2026. Fiscal 2022 operations and maintenance (Navy) funds in the amount of $649,806,585 (96%); and fiscal 2022 other procurement (Navy) funds in the amount of $26,279,977 (4%) funding will be obligated at the time of award, and funds in the amount of $649,806,585 will expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, D.C., is the contracting activity.