COLUMBIA-Class Ballistic Missile Submarine Design, Class Lead Yard Support and Sustainment, Integrated Enterprise Plan Initiatives for the Class, and Submarine Industrial Base Supplier Development Efforts

The contract action was not awarded competitively and was not fixed price, in accordance with FAR 6.302-1(a)(2)(iii) - only one responsible source and no other supplies or services will satisfy agency requirements.

Due to the federal government shutdown in October-November 2025 and pursuant to DFARS 252.232-7998 Obligations in Advance of Fiscal Year 2026 Funding (DEVIATION 2026-O0001), an initial cost-only modification was awarded in the amount of $2,283,291,317 in November 2025. Once FY26 funding became available in March 2026, a larger modification was awarded manifesting the $2,283,291,317 along with an additional $15,383,494,792 for a combined total of $17,666,786,109.

General Dynamics Electric Boat Corp., Groton, Connecticut, was awarded a $2,283,291,317 cost-only modification to previously awarded contract N00024-17-C-2117 for additional Advance Procurement / Advance Construction for SSBN 828 through SSBN 832 and to support additional COLUMBIA Ballistic Missile Submarines (SSBNs) program execution in accordance with DFARS 252.232-7998 Obligations in Advance of Fiscal Year 2026 Funding (DEVIATION 2026-O0001). Work will be performed in Groton, Connecticut (70%); Newport News, Virginia (15%); and Quonset Point, Rhode Island (15%), and is expected to be completed by December 2031.

No funding was obligated at the time of award. Pursuant to DFARS 252.232-7998 Obligations in Advance of Fiscal Year 2026 Funding (DEVIATION 2026-O0001), Fiscal 2026 National Sea-Based Deterrence Fund funds in the amount of $2,229,067,000 (98%) and Fiscal 2026 other procurement (Navy) funds in the amount of $54,224,317 (2%) to be obligated at the time made available and will not expire at the end of the current fiscal year.

General Dynamics Electric Boat Corp., Groton, Connecticut, was awarded a $15,383,494,792 cost-plus-incentive-fee and cost-plus-fixed-fee modification to a previously awarded contract (N00024-17-C-2117) for additional Columbia-class ballistic missile submarines design, class lead yard support and sustainment, integrated enterprise plan initiatives for the class, and submarine industrial base supplier development enhancement efforts to support Columbia-class ballistic missile submarine program execution. The industrial base development work is for the furtherance of the Navy’s plan of serial production of Columbia- and Virginia-class attack submarines. Funding is pursuant to the Consolidated Appropriations Act 2026 (Public Law 119-75). Work will be performed in Groton, Connecticut (21%); Newport News, Virginia (6%); Sunnyvale, California (5%); Menomonee, Wisconsin (4%); Quonset Point, Rhode Island (4%); Fitchburg, Massachusetts (3%); Philadelphia, Pennsylvania (3%); Mobile, Alabama (2%); Bethlehem, Pennsylvania (1%); and other locations less than 1% (51%), and is expected to be completed by June 2035. Fiscal 2026 national sea-based deterrence fund funds in the amount of $3,068,073,260 (95%); fiscal 2025 maritime industrial base funds in the amount of $74,000,000 (2%); fiscal 2025 research, development, test and evaluation (Navy) funds in the amount of $73,214,000 (2%); and fiscal 2026 research, development, test and evaluation (Navy) funds in the amount of $2,837,000 (

NAVSEA contract with General Dynamics Electric Boat Corp. for $15,383,494,792

NAVSEA POC: NAVSEA Office of Corporate Communications, (202) 781-4123

General Dynamics Electric Boat Corp. POC: Myra Lee, Director Communications (860) 433-2086