Lockheed Martin Corp., Grand Prairie, Texas, was awarded a $556,114,935 modification (P00100) to contract W31P4Q-20-C-0023 for Phased Array Tracking Radar to Intercept on Target Advanced Capability-3 production. Work will be performed in Lake Mary, Florida; Huntsville, Alabama; Foothill Ranch, California; Joplin, Missouri; Wichita, Kansas; Clearwater, Florida; Pinellas Park, Florida; Glendale, California; Phoenix, Arizona; Dunedin, Florida; Vergennes, Vermont; Elma, New York; Camden, Arkansas; Chelmsford, Massachusetts; Grand Prairie, Texas; Lufkin, Texas; and Ocala, Florida, with an estimated completion date of Dec. 31, 2032. Fiscal 2023 missile procurement, Army and Foreign Military Sales (Bahrain, Kuwait, Poland, Qatar, South Korea, Switzerland, Taiwan, and United Arab Emirates) funds in the amount of $556,114,935 were obligated at the time of the award. Army Contracting Command, Redstone Arsenal, Alabama, is the contracting activity.