PMA-266 is NAVAIR's program office for Multi-Mission Tactical Unmanned Aerial Systems (UAS). Responsible to the Program Executive Office for Unmanned Aviation and Strike Weapons, the program has cognizance over the MQ-9 Marine Air-Ground Task Force (MAGTF) Unmanned Aircraft System (UAS), Expeditionary (MUX) Family of Systems (ACAT II) program. The program office is also responsible for emerging group 4 and 5 vertical lift platforms.