Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded a $38,348,155 cost-plus-incentive-fee, fixed-price-incentive-fee, cost reimbursable modification (P00021) to a previously awarded contract (N0001921C0020). This modification exercises options to provide logistics support for the repair and replenishment of parts and consumables for the F-35 aircraft in support of the Marines, Navy, and non-U.S. Department of Defense (DOD) participants. Work will be performed in Fort Worth, Texas (57%); Orlando, Florida (26%); Greenville, South Carolina (11%); Samlesbury, United Kingdom (4%); and El Segundo, California (2%), and is expected to be completed in December 2021. Fiscal 2022 operation and maintenance (Marine Corps) funds in the amount of $23,903,316; fiscal 2022 operation and maintenance (Navy) funds in the amount of $10,291,481; and non-U.S. DOD participant funds in the amount of $4,153,358 will be obligated at time of award, $34,194,797 which will expire at the end of the current fiscal year. The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.