Lockheed Martin Rotary & Missions Systems, Colorado Springs, Colorado, is being awarded an extension to the indefinite-delivery/indefinite-quantity contract HQ0147-19-D-0002. The total value of this contract is $282,775,135. No task orders are being issued at this time. The work will continue to be performed in Huntsville, Alabama. This contract was previously competitively awarded to provide the development and sustainment of the Missile Defense Agency’s (MDA) Objective Simulation Framework modeling and simulation system. The government is awarding this extension with only one source under the authority of 10 U.S. Code 3204(a)(1) and Federal Acquisition Regulation 6.302-1. This extension will ensure continuity of critical work to deliver required capability increments. The ordering period end date is extended from April 15, 2024, to Oct. 15, 2026, and adds two 12-month options and one six-month option. The extension will allow for the execution of MDA’s integrated master test plan that includes ground test, flight test, and warfighter training and combatant command exercise events. The Missile Defense Agency, Redstone Arsenal, Alabama, is the contracting activity (HQ0147-19-D-0002).