The U.S. Department of State has approved a possible Foreign Military Sale to Qatar valued at $4.5 billion, covering up to four KC-46A aerial refueling aircraft and related equipment, according to a State Department announcement reported by Defense News.

The announcement describes the transaction as a possible sale. Qatar’s government requested the package, which includes up to four KC-46As, eight PW4062 turbofan engines, 10 AN/ALR-69A radar warning receivers, 15 Guardian Laser Transmitter Assemblies for Large Aircraft Infrared Countermeasure systems and eight LAIRCM system processor replacements.

The State Department’s notice does not provide a separate price for the aircraft, engines, warning receivers, laser-countermeasure equipment, processor replacements or other elements. The $4.5 billion figure applies to the possible Foreign Military Sale as a whole. The announcement also does not specify how the listed quantities would be distributed among the aircraft or how the equipment would be configured.

The requested package includes items the State Department classifies as non-major defense equipment. Those items include precision navigation, transportation and airlift support, personnel training, training equipment, and other logistical and program-support services and equipment. The notice does not assign separate costs or delivery schedules to those categories.

The KC-46A is an aerial refueling aircraft that supports the U.S. Air Force, Navy, Marine Corps and partner nations. The State Department’s description also identifies cargo and aeromedical evacuation capabilities. It says the KC-46A has greater refueling, cargo and aeromedical evacuation capabilities than the aging KC-135.

The State Department said the proposed sale would increase Qatar’s capability to address current and future threats. It also said the package would enhance interoperability with U.S. and allied forces and reinforce Qatar’s strategic role in regional security. Those points are presented in the announcement as the U.S. government’s assessment of the proposed sale and its intended policy effects.

The notice frames the possible transaction as supporting U.S. foreign-policy and national-security objectives by assisting Qatar’s security. It describes Qatar as a “strategic regional partner” and as an “important force” for political stability and economic progress in the Middle East.

The announcement does not identify a specific threat, contingency or operational mission that prompted Qatar’s request. It also does not state when the aircraft or equipment would be delivered. The notice does not provide a proposed schedule for negotiations, production or fielding.

The possible sale would involve four principal contractors: Boeing, Pratt & Whitney Military Engines, RTX Corporation and Northrop Grumman Corporation. The announcement lists the companies but does not divide responsibilities among them. It therefore does not identify which company would supply each item or describe the value of any company’s potential work.

The notice says implementation of the proposed sale would not require additional U.S. government or contractor representatives to Qatar. It does not otherwise describe the personnel arrangements that would support training, logistics or program management.

The State Department also said it was not aware of any offset agreement proposed in connection with the potential sale. Any offset agreement, according to the announcement, would be defined through negotiations between Qatar and the contractor. The notice does not provide terms for such an agreement or state whether one will ultimately be reached.

The listed equipment includes propulsion, aircraft systems, training, transportation, airlift and logistical support. The announcement does not describe a separate operational concept for Qatar’s requested aircraft or state how the aircraft would be assigned to particular missions. It identifies the KC-46A’s capabilities generally while describing the Qatar transaction as a request for the aircraft and related equipment.

The State Department’s announcement presents the $4.5 billion figure as the value of a possible Foreign Military Sale. The request remains described in proposed terms throughout the notice, which identifies the aircraft, equipment and support categories under consideration but does not provide a completion date or final commercial terms.