Lockheed Martin Corp., Fort Worth, Texas, is awarded a not-to-exceed $765,158,560 firm-fixed-price, cost-plus-fixed-fee, undefinitized indefinite-delivery/indefinite-quantity contract. This contract provides for site activation/hardware requirements in support of first aircraft arrival, initial operation capability, and full operational capability milestone events, to include site activation events, support equipment, pilot flight equipment, and post ejection survival training material, as well as contract management, planning and readiness reviews and associated non-recurring introduction to service activities in support of F-35A, F-35B, and F-35C aircraft initial sustainment activities for the Air Force, Marine Corps, Navy, non-Department of Defense participants and Foreign Military Sales customers. Work will be performed in El Segundo, California (52%); Orlando, Florida (44%); Fort Worth, Texas (3%); and Lancashire, United Kingdom (1%), and is expected to be completed in December 2024. No funds will be obligated at the time of award; funds will be obligated on individual orders as they are issued. This contract was not competitively procured pursuant to 10 U.S. Code 2304(c)(1). The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity (N0001923D0010).