Northrop Grumman Systems Corp. Aerospace Systems, Palmdale, California, was awarded a indefinite-delivery/indefinite-quantity contract with a ceiling of $7,000,000,000 for B-2 modernization and sustainment. This contract provides for B-2 enhancements, sustainment, logistics elements including sustaining engineering, software maintenance, and support equipment. Also included is programmed depot maintenance of the fleet and other interim contractor support. Work will be performed at Palmdale, California; with performance at other locations, namely Whiteman Air Force Base, Missouri; Tinker AFB, Oklahoma; Wright Patterson AFB, Ohio; Edwards AFB, California; and Hill AFB, Utah, and is expected to be completed by May 3, 2029. This contract was a sole source acquisition. Fiscal 2023 research, development, test, and evaluation funds in the amount of $21,439 are being obligated at time of award. The Air Force Life Cycle Management Center, B-2 Division Contracting, Wright-Patterson AFB, Ohio, is the contracting activity (FA8616-24-D-B001).