; (B) a counter-UAS system; (C) a powered lift aircraft; (D) a technology related to— (i) advanced air mobility; (ii) the ability of an aircraft to detect surroundings and avoid impacts; (iii) autonomous functioning of aircraft; (iv) supersonic aircraft capabilities; (v) electric or hydrogen based aircraft propulsion; or (vi) evolving aerospace operations including new aircraft, airport, weather, or digital systems; (E) a technology that— (i) relates to the telecommunication capabilities of aircraft; or (ii) functions in the 5G band, 6G band, or other high-frequency spectrum bands as designated by the National Telecommunications and Information Administration for use as aeronautical radio frequency spectrum; or (F) any other aviation-related technology that the Associate Administrator for Advanced Aviation determines qualifies as an advanced aviation system that could feasibly be integrated into the national airspace system. (4) Counter-uas system; unmanned aircraft system The terms counter-UAS system and unmanned aircraft system have the meanings given such terms in section 44801 of title 49, United States Code. (5) Secretary The term Secretary means the Secretary of Transportation.