; and (B) evaluating the feasibility of using remote towers, particularly in the Contract Tower Program, for airports without an air traffic control tower, to improve safety at airports with towers, or to reduce costs without impacting safety at airports with or without existing towers. (8) Deadline Not later than 1 year after the date of enactment of this Act, the Administrator shall select airports for participation in the pilot program. (9) Definitions In this subsection: (A) Contract tower program The term Contract Tower Program has the meaning given the term in section 47124(e) of title 49, United States Code, as added by this Act. (B) Remote tower The term remote tower means a remotely operated air navigation facility, including all necessary system components, that provides the functions and capabilities of an air traffic control tower whereby air traffic services are provided to operators at an airport from a location that may not be on or near the airport. (C) Other definitions The terms nonhub airport , primary airport , and public-use airport have the meanings given such terms in section 47102 of title 49, United States Code. (10) Sunset This subsection, including the report required under paragraph (8), shall not be in effect after September 30, 2023. (b) Remote tower program Concurrent with the establishment of the process for safety and operational certification of remote towers under subsection (a)(1)(C), the Administrator shall establish a process to authorize the construction and commissioning of additional remote towers that are certificated under subsection (a)(1)(C) at other airports. (c) AIP funding eligibility For purposes of the pilot program under subsection (a), and after certificated remote towers are available under subsection (b), constructing a remote tower or acquiring and installing air traffic control, communications, or related equipment specifically for a remote tower shall be considered airport development (as defined in section 47102 of title 49, United States Code) for