Rail Trust Fund (1) In general There is hereby appropriated to the Intercity Passenger Rail Trust Fund for fiscal year 2021, and for each fiscal year thereafter, an amount equal to 50 percent of the average annual amounts appropriated to the Highway Trust Fund under section 9503 for fiscal years 2008 through 2020. (2) Authorization of Appropriation of Additional sums There are hereby authorized to be appropriated to the Intercity Passenger Rail Trust Fund such additional sums as may be required to make the expenditures referred to in subsection (c). (c) Expenditures from the Intercity Passenger Rail Trust Fund Amounts in the Intercity Passenger Rail Trust Fund shall be available for obligation without further appropriations action for making expenditures to carry out section 24314 of title 49. . (b) Clerical amendment The table of sections for subchapter A of chapter 98 of such Code is amended by adding at the end the following new item: Sec. 9512. Intercity Passenger Rail Trust Fund. 4. Intercity Passenger Rail Trust Fund Expenditures (a) In general Chapter 243 of title 49, United States Code, is amended by inserting after section 24313 the following: 24314. Intercity Passenger Rail Trust Fund Expenditures (a) Expenditures from the Intercity Passenger Rail Trust Fund Amounts deposited into the Intercity Passenger Rail Trust Fund each fiscal year pursuant to section 9512(b) of the Internal Revenue Code of 1986 shall be available for obligation, without further appropriation, consistent with the ratios set forth in subsection (b). Amounts made available under this section shall remain available until expended. (b) Intercity Passenger Rail Trust Fund Expenditure Ratios The Secretary may use amounts deposited into the Intercity Passenger Rail Trust Fund each fiscal year to award grants to Amtrak, in accordance with the process described in section 24319. Of the grant funds awarded pursuant to this subsection— (1) 40 percent shall be used for activities associated with the Northeast Corridor, and (2) 60 percent