; and (B) by striking imposed under paragraph (1) or (4) and inserting imposed under paragraph (1) ; and (4) in paragraph (7)(A)— (A) by striking specified in paragraphs (1), (4), and (6) and inserting specified in paragraphs (1) and (6) ; and (B) by striking imposed under paragraph (1) or (4) and inserting imposed under paragraph (1) . 112. Pilot program for passenger facility charge authorizations Section 40117(l) of title 49, United States Code, is amended— (1) in the subsection heading by striking at Nonhub Airports ; and (2) in paragraph (1) by striking nonhub . 113. Use of funds from passenger facility charges to prevent power outages Section 40117(a)(3) of title 49, United States Code, is amended by adding at the end the following: (H) An on-airport project to purchase and install generators to prevent power outages in passenger areas of the airport, to separate an airport’s redundant power supply and its main power supply, or for any other on-airport project to prevent power outages or damage to the airport’s power supply. . C Airport Improvement Program modifications 121. Clarification of airport obligation to provide FAA airport space Section 44502 of title 49, United States Code, is amended by adding at the end the following: (f) Airport space (1) In general Except as provided in paragraph (2), the Administrator of the Federal Aviation Administration may not require an airport owner, operator, or sponsor (as defined in section 47102) to provide building construction, maintenance, utilities, administrative support, or space on airport property to the Federal Aviation Administration without adequate compensation. (2) Exceptions Paragraph (1) does not apply in any case in which an airport owner, operator, or sponsor— (A) provides land or buildings without compensation to the Federal Aviation Administration for facilities used to carry out activities related to air traffic control or navigation pursuant to a grant assurance