Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded a $64,121,341 modification (P00013) to firm-fixed-price order N00019-20-F-0571 against previously issued basic ordering agreement N00019-19-G-0008. This modification exercises options for the procurement of Digital Channelized Receiver/Techniques Generator and Tuner Insertion program technology to upgrade F-35 Joint Strike Fighter aircraft with Digital Tuner Insertion Program electronic warfare racks and high efficiency low voltage power supply. These upgrades will enable for future upgrades to Lot 15 Block 4 configuration, including Technical Refresh Three for the Air Force and non-Department of Defense (DOD) participants. Work will be performed in Fort Worth and is expected to be completed in June 2025. Fiscal 2020 aircraft procurement (Air Force) funds in the amount of $57,865,601; and non-DOD participant funds in the amount of $6,255,740 will be obligated at the time of award, none of which will expire at the end of the current fiscal year. The Naval Air Systems Command, Patuxent River, Md., is the contracting activity. (Source: DoD, 01/26/21) Gulf Coast note: Eglin Air Force Base, Fla., is home of an F-35 training center and reprogramming labs.