Austal USA, Mobile, Alabama, is awarded a $47,451,920 cost-plus-fixed-fee, firm-fixed-price, and cost-only modification to previously awarded contract (N00024-17-C-2301) to exercise an option for Littoral Combat Ships class design support, and integrated data and product model environment support. Work will be performed in Mobile, Alabama (60%); and Pittsfield, Massachusetts (40%), and is expected to be completed by June 2025. Fiscal 2019 shipbuilding and conversion (Navy) funding in the amount of $4,999,660 (99.9%) will be obligated at time of award. Fiscal 2024 shipbuilding and conversion (Navy) funds in the amount of $340 (< 1%) will also be obligated at time of award and will expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, D.C., is the contracting activity.