Reliance Test and Technology LLC, Crestview, Florida, is awarded an $86,421,108 cost-plus-fixed-fee modification (P00045) to a previously awarded contract (N0042120C0033). This modification exercises an option to provide research, development, test, evaluation, engineering, fleet and management support services required to perform aircraft engineering and developmental flight tests, as well as fleet training events for the Navy and Marine Corps air vehicle systems and trainers in support of the Atlantic Ranges and Targets Department. Work will be performed in Patuxent River, Maryland (78%); Norfolk, Virginia (13%); Dam Neck, Virginia (5%); and various locations within the continental U.S. (4%), and is expected to be completed in June 2031. Fiscal 2024 research, development, test, and evaluation (Navy) funds in the amount of $14,616,828; fiscal 2024 operations and maintenance (Navy) funds in the amount of $4,096,339; fiscal 2024 working capital (Navy) funds in the amount of $2,709,405; fiscal 2024 research, development, test and evaluation (Defense Wide) funds in the amount of $1,071,250, will be obligated at time of award, $4,096,339 of which will expire at the end of the current fiscal year. Naval Air Warfare Center Aircraft Division, Patuxent River, Maryland, is the contracting activity.