tower, as defined by the Secretary, and for the acquisition and installation of air traffic control, communications, and related equipment to be used in that tower. Such grants shall be subject to the distribution requirements of subsection (b) and the eligibility requirements of section 47124(b)(4)(B). . 142. Small airport regulation relief Section 47114(c)(1) is amended by striking subparagraph (F) and inserting the following: (F) Special rule for fiscal years 2018 through 2020 Notwithstanding subparagraph (A) and subject to subparagraph (G), the Secretary shall apportion to a sponsor of an airport under that subparagraph for each of fiscal years 2018 through 2020 an amount based on the number of passenger boardings at the airport during calendar year 2012 if the airport— (i) had 10,000 or more passenger boardings during calendar year 2012