Aurora Flight Sciences Corp., Manassas, Virginia, has been awarded a $19,521,472 modification (P00003) to cost-plus-fixed-fee contract HR001123C0013 to exercise Option One of the Liberty Lifter program. The modification brings the total cumulative face value of the contract to $25,200,818 from $5,679,346. Work will be performed in Manassas, Virginia (16%); Cambridge, Massachusetts (14%); Arlington, Virginia (14%); Indianapolis, Indiana (14%); Clackamas, Oregon (14%); Astoria, Oregon (14%); and Vancouver, Washington (14%), with an expected completion date of July 2024. Fiscal 2022 and 2023 research and development funds in the amount of $121,398 and $6,746,215, respectively, are being obligated at the time of award. The Defense Advanced Research Projects Agency, Arlington, Virginia, is the contracting activity.