; (II) by striking section 4081(a)(2)(A)(iii) and inserting section 4081(a)(2)(A)(iv) ; and (III) by striking Kerosene used in commercial aviation in the heading and inserting In general ; (ii) by striking subparagraphs (B) and (C) and inserting the following: (B) Payment to ultimate registered vendor With respect to any aviation-grade kerosene, if the ultimate purchaser of such kerosene waives (at such time and in such form and manner as the Secretary shall prescribe) the right to payment under paragraph (1) and assigns such right to the ultimate vendor, then the Secretary shall pay the amount which would be paid under paragraph (1) to such ultimate vendor, but only if such ultimate vendor— (i) is registered under section 4101, and (ii) meets the requirements of subparagraph (A), (B), or (D) of section 6416(a)(1). ; and (iii) by striking kerosene used in commercial aviation in the heading and inserting aviation-grade kerosene . (D) Section 6427(i)(4)(A) of such Code is amended— (i) by striking paragraph (4)(C) and inserting paragraph (4)(B)