; and (B) transfer portions of the funds retained under subparagraph (A) to the relevant Administrators to fund the award and oversight of grants provided under this section. ; (3) in subsection (d)— (A) in paragraph (1)(A)— (i) in clause (iii)(II), by striking or at the end; (ii) in clause (iv), by striking and at the end and inserting or ; and (iii) by adding at the end the following: (v) a wildlife crossing project; and ; (B) in paragraph (2)(A), in the matter preceding clause (i)— (i) by striking $500,000,000 and inserting 30 percent ; and (ii) by striking fiscal years 2016 through 2020, in the aggregate, and inserting each of fiscal years 2021 through 2025 ; and (C) by adding at the end the following: (3) Critical rural State interstate projects (A) Requirement Not less than $500,000,000 of the amounts made available for grants under this section for fiscal years 2021 through 2025, in the aggregate, shall be used to make grants for Interstate interchange projects between 2 routes on the Interstate System that— (i) are located in a State— (I) with a population density of not more than 80 persons per square mile of land area, based on the 2010 census; and (II) that has 3 or fewer Interstate interchanges between 2 routes on the Interstate System; and (ii) are projects that— (I) address a freight system need identified in a State freight plan under section 70202 of title 49 (referred to in this paragraph as a State freight plan ); (II) address a freight mobility issue identified in a State freight plan