Mantech Advanced Systems International Inc., Herndon, Virginia, has been awarded a $45,515,277 modification (P00061) to previously awarded FA8819-18-C-1001 for specialized acquisition and operations security services in support of U.S. Space Force (USSF) mission areas. This contract modification provides for the exercise of an option for continued sensitive compartmented information and special access program security services for the Space Systems Command and USSF operational units under the basic contract. Work will be performed at Los Angeles Air Force Base, California; Vandenberg AFB, California; and Peterson AFB, Colorado, and is expected to be completed by Nov. 16, 2022. Fiscal 2021 missile procurement; operations and maintenance; and research and development funds in the amount of $45,515,277 are being obligated at the time of award. The total cumulative face value of the contract is $150,651,880. Space Systems Command, Los Angeles AFB, California, is the contracting activity.