The Marine Air Command and Control System (MACCS) is the aviation command and control agencies of the United States Marine Corps that provide the Aviation Combat Element (ACE) commander with the means to monitor, supervise, and influence aviation operations in support of the Marine Air-Ground Task Force. The command and control agencies of the MACCS are provided by the squadrons and battalions of the Marine Air Control Groups that are present within each Marine Air Wing. The capabilities resident within the MACCS allow the MAGTF commander to safely conduct aviation operations, facilitate timely maneuver and prosecution of fires and ultimately retain full control of their entire area of operations. MACCS agencies are also responsible for coordinating Marine Corps aviation operations with joint, multinational and civil aviation.

Marine Air Support Squadron 2 (MASS-2), is a United States Marine Corps aviation command and control unit that provides the Direct Air Support Center (DASC) for the III Marine Expeditionary Force. It is the oldest and most decorated aviation command and control unit in the Marine Corps.