Raytheon Missiles & Defense, Marlborough, Massachusetts, is awarded a $225,308,559 cost-plus-fixed-fee and cost-only modification to a previously awarded contract (N00024-19-C-5501) to exercise options for continued Air and Missile Defense Radar and Enterprise Air Surveillance Radar integration and production support. Work will be performed in Marlborough, Massachusetts (56%); Pascagoula, Mississippi (14%); Moorestown, New Jersey (9%); Newport News, Virginia (6%); Kauai, Hawaii (5%); Wallops Island, Virginia (4%); Bath, Maine (2%); Chesapeake, Virginia (2%); Portsmouth, Rhode Island (1%); and San Diego, California (1%), and is expected to be completed by November 2024. Fiscal 2018 shipbuilding and conversion (Navy) funds in the amount of $23,159,899 (35%); fiscal 2019 shipbuilding and conversion (Navy) funds in the amount of $19,743,202 (30%); fiscal 2024 research development, test and evaluation funds in the amount of $8,659,881 (13%); fiscal 2022 shipbuilding and conversion (Navy) funds in the amount of $4,449,322 (7%); fiscal 2020 shipbuilding and conversion (Navy) funds in the amount of $2,147,169 (3%); fiscal 2023 research development, test and evaluation funds in the amount of $1,788,804 (3%); fiscal 2021 shipbuilding and conversion (Navy) funds in the amount of $1,445,116 (2%); fiscal 2017 shipbuilding and conversion (Navy) funds in the amount of $1,427,937 (2%); fiscal 2023 shipbuilding and conversion (Navy) funds in the amount of $1,405,700 (2%); fiscal 2024 shipbuilding and conversion (Navy) in the amount of $983,593 (1%); fiscal 2024 operations and management (Navy) in the amount of $653,000 (1%); and fiscal 2024 other procurement (Navy) in the amount of $593,378 (1%), will be obligated at time of award, of which $2,441,804 will expire at the end of the current fiscal year. This contract was procured under the statutory authority of 10 U.S. Code 2304(c)(1), Only one responsible source and no other supplies or services will satisfy agency requirements. Naval Sea Systems Command, Washington, D.C., is the contracting activity.