Lockheed Martin, Littleton, Colorado, has been awarded a $42,900,552 modification (P00776) to a previously awarded contract (FA8807‐08‐C‐0010) for GPS III flight software, mission data unit integrated test equipment, a mission data unit ancillary rack, and a hardware support test bed. The modification brings the total cumulative face value of the contract to $5,598,541,698 from $5,555,641,146. Work will be performed at Littleton, Colorado, and is expected to be completed by May 19, 2027. Fiscal 2023 procurement funds in the amount of $42,900,552 are being obligated at time of award. Space Systems Command, Los Angeles Space Force Base, California, is the contracting activity.