Lockheed Martin Rotary and Mission Systems, Liverpool, New York, has been awarded a $10,098,530 option exercise modification (P00018) to previously awarded FA8730-21-C-0022 for the Three-Dimensional Expeditionary Long-Range Radar (3DELRR) system. This modification provides for the option exercise of three enhancements to the TPY-4 radar system. Work will be performed at Liverpool, New York, and is expected to be completed by March 31, 2025. Fiscal 2023 research, development, test, and evaluation funds in the amount of $6,924,850 are being obligated at time of award. Total cumulative face value of the contract is $193,229,635 and the total obligated amount of this contract is $189,905,908. Air Force Life Cycle Management Center, Hanscom Air Force Base, Massachusetts, is the contracting activity.