; and (4) recommends legislative or other actions to address the limitations and deficiencies identified in paragraphs (2) and (3). II Unmanned aircraft systems 2121. Definitions (a) In general Part A of subtitle VII is amended by inserting after chapter 447 the following: 448 Unmanned aircraft systems Sec. 44801. Definitions. 44801. Definitions In this chapter— (1) appropriate committees of Congress means the Committee on Commerce, Science, and Transportation of the Senate and the Committee on Transportation and Infrastructure of the House of Representatives . (2) Arctic means the United States zone of the Chukchi Sea, Beaufort Sea, and Bering Sea north of the Aleutian chain. (3) certificate of waiver and certificate of authorization mean a Federal Aviation Administration grant of approval for a specific flight operation. (4) permanent areas means areas on land or water that provide for launch, recovery, and operation of small unmanned aircraft. (5) public unmanned aircraft system means an unmanned aircraft system that meets the qualifications and conditions required for operation of a public aircraft (as defined in section 40102(a)). (6) sense and avoid capability means the capability of an unmanned aircraft to remain a safe distance from and to avoid collisions with other airborne aircraft. (7) small unmanned aircraft means an unmanned aircraft weighing less than 55 pounds, including the weight of anything attached to or carried by the aircraft. (8) test range means a defined geographic area where research and development are conducted as authorized by the Administrator of the Federal Aviation Administration. (9) test site means any of the 6 test ranges established by the Administrator of the Federal Aviation Administration under section 332(c) of the FAA Modernization and Reform Act of 2012 ( 49 U.S.C. 40101 note), as in effect on the day before the date of enactment of the Federal Aviation Administration Reauthorization Act of 2017 , and any public entity authorized by the Federal Aviation Administration as