Dayton T. Brown Inc.,* Bohemia, New York, is awarded an $82,595,099 indefinite-delivery/indefinite-quantity contract. This contract provides for supplies and services in support of the Naval Air Warfare Center Aircraft Division’s Special Missions Integrated Test Facility (AIR-5.4). Supplies and services being procured are in support of the continued development of the Mobile Mission System (MMS) family of system capabilities, MMS variants, procurement of additional MMS units, prototyping and modification for rapid mission specific system reconfiguration, test and operational deployment, maintenance, repair, refurbishment, logistics support and associated material procurements in support of the complete system of systems capabilities between the MMS, the airborne component, the ground component and the required laboratory component. Work will be performed in Patuxent River, Maryland (91 percent); and Bohemia, New York (9 percent), and work is expected to be completed December 2025. No funds are being obligated at time of award; funds will be obligated on individual delivery orders as they are issued. This contract was not competitively procured pursuant to 10 U.S. Code 2304(c)(1). The Naval Air Warfare Center Aircraft Division, Patuxent River, Maryland, is the contracting activity.