; (3) assess the impacts of operations in saltwater environments; (4) identify the challenges of integrating such technologies in complex airspace, including with commercial rotorcraft; and (5) identify the differences between coordinating with Federal air traffic control towers and towers operated under the FAA Contract Tower Program. (c) Briefing to Congress The Administrator shall provide an annual briefing to the appropriate committees of Congress on the status of the partnership authorized under this section, including detailing any barriers to the commercialization of innovative technologies in the Gulf of Mexico. (d) Definitions In this section: (1) Eligible airport authority The term eligible airport authority means an AIP-eligible airport authority that is— (A) located in a state bordering the Gulf of Mexico which does not already contain a UAS Test Range; (B) has an air traffic control tower operated under the FAA Contract Tower Program; (C) is located within 60 miles of a port; and (D) does not have any scheduled passenger airline service as of the date of the enactment of this Act. (2) Innovative technologies The term innovative technologies means unmanned aircraft systems and powered-lift aircraft. (3) UAS The term UAS means an unmanned aircraft system. B Advanced Air Mobility 951. Definitions In this subtitle: (1) Advanced air mobility The terms advanced air mobility and AAM mean a transportation system that is comprised of urban air mobility and regional air mobility using manned or unmanned aircraft. (2) Powered-lift aircraft The term powered-lift aircraft has the meaning given the term powered-lift in section 1.1 of title 14, Code of Federal Regulations. (3) Regional air mobility The term regional air mobility means the movement of passengers or property by air between 2 points using an airworthy aircraft that— (A) has advanced technologies, such as distributed propulsion, vertical takeoff and landing, powered lift, nontraditional power systems, or autonomous technologies