; and (ii) by striking , (l)(4)(C)(ii), . (E) Section 6427(l)(5)(B) of such Code is amended by striking kerosene used in aviation and inserting aviation-grade kerosene . (c) Transfers from highway trust fund of taxes on fuels used in aviation to airport and airway trust fund (1) In general Section 9503(c) of the Internal Revenue Code of 1986 is amended by striking paragraph (5). (2) Conforming amendments (A) Section 9502(a) of such Code is amended by striking , section 9503(c)(5), . (B) Section 9502(b)(1)(D) of such Code is amended by striking and kerosene to the extent attributable to the rate specified in section 4081(a)(2)(C) and inserting and aviation-grade kerosene . (C) Section 9503(b) of such Code is amended by inserting after paragraph (2) the following new paragraph: (3) Adjustments for aviation uses The amounts described in paragraph (1) and (2) with respect to any period shall (before the application of this subsection) be reduced by appropriate amounts to reflect any amounts transferred to the Airport and Airway Trust Fund under section 9502(b) with respect to such period. . (d) Certain transfers not transferred from airport and airway trust fund (1) Section 9502(d)(2) of the Internal Revenue Code of 1986 is amended by striking (other than subsection (l)(4) thereof) . (2) Section 9502(d)(3) of such Code is amended by striking (other than payments made by reason of paragraph (4) of section 6427(l)) . (e) Effective date The amendments made by this section shall apply to fuels or liquids removed, entered, or sold after September 30, 2019. VI Voluntary Surrender of Repair Station Certificate 601. Revision of certain regulations relating to repair station certificates The Administrator shall— (1) not later than 60 days after the date of the enactment of this Act, publish in the Federal Register a notice of proposed rulemaking revising part 145 of title 14, Code of Federal Regulations— (A) to restore the right of a repair station to unilaterally surrender its certificate