Chenega Infinity LLC,* Chantilly, Virginia, has been awarded a $9,085,775 modification (P00010) to previously awarded contract HR001118C0151 for physical security support services. The modification brings the total cumulative face value of the contract to $37,503,446 from $28,417,671. Work will be performed in Arlington, Virginia, with an expected completion date of December 2022. Fiscal 22 research and development funds in the amount of $2,007,150 are being obligated at time of award. The Defense Advanced Research Projects Agency, Arlington, Virginia, is the contracting activity.