General Dynamics Mission Systems, Fairfax, Virginia, is awarded a $33,310,492 cost-plus-fixed-fee and cost modification to previously awarded contract N00024-19-C-6407 to exercise options to provide BYG-1 Tactical Control System engineering support. Work will be performed in Fairfax, Virginia, and is expected to be completed by July 2024. Fiscal 2023 other procurement (Navy) funds in the amount of $3,839,267 (38%); fiscal 2023 research, development, test and evaluation (Navy) funds in the amount of $1,888,336 (19%); fiscal 2018 shipbuilding and conversion (Navy) funds in the amount of $1,762,697 (17%); Royal Australian Navy funds in the amount of $1,421,538 (14%); fiscal 2021 shipbuilding and conversion (Navy) funds in the amount of $1,063,052 (11%); fiscal 2022 other procurement (Navy) funds in the amount of $116,918 (1%); fiscal 2021 other procurement (Navy) funds in the amount of $11,970 (less than 1%); and fiscal 2022 research, development, test and evaluation (Navy) funds in the amount of $4,359 (less than 1%) will be obligated at time of award, of which $16,329 will expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, D.C., is the contracting activity (N00024-19-C-6407).