Apogee Research LLC,* Arlington, Virginia, is receiving a $13,536,847 modification (P00004) to a previously awarded cost-plus-fixed-fee contract (N6523623C8005). This modification is for an engineering change for the Defense Advanced Research Projects Agency Oversight Program and brings the total cumulative value of the contract, including options, to $22,768,132. Work will be performed in Arlington, Virginia, with an expected completion date of September 2026. Fiscal 2024 research, development, test and evaluation funds in the amount of $5,081,910 will be obligated at time of modification award. Contract funds will not expire at the end of the current fiscal year. Naval Information Warfare Center, Atlantic, Charleston, South Carolina, is the contracting activity.