The Lockheed Martin Corp., Rotary and Mission Systems, Mitchell Field, New York, is awarded a $29,781,688 cost-plus-incentive-fee and cost-plus-fixed-fee contract modification (P00039) to a previously awarded and announced contract (N00030-20-C-0045) for the United States and United Kingdom to provide Strategic Weapon System Trident Fleet Support, Trident II SSP Shipboard Integration (SSI) Increment 8, SSI Increment 16, Columbia-class and U.K. Dreadnought-class navigation subsystem development efforts. Work will be performed in Mitchel Field, New York (47%); Huntington Beach, California (36%); Clearwater, Florida (9%); Cambridge, Massachusetts (6%); and Hingham, Massachusetts (2%) with an expected completion date of November 30, 2023. Fiscal 2022 other procurement (Navy) funds in the amount of $23,629,506, are anticipated to be available and fully funded via contract modification. Fiscal 2022 operation and maintenance (Navy) funds in the amount of $4,992,600 and Fiscal 2022 shipbuilding and conversion funds in the amount of $1,159,582 are subject to availability of funds via contract modification. No funds will expire at the end of the current fiscal year. This contract was a sole-source acquisition in accordance with 10 U.S. Code 2304(c)(1) and (4). Strategic Systems Programs, Washington, D.C., is the contracting activity.