Except as provided in paragraphs (2), (3), and (4), amounts in the Leaking Underground Storage Tank Trust Fund shall be available, as provided in appropriation Acts, only for purposes of making expenditures to carry out sections 9003(h), 9003(i), 9003(j), 9004(f), 9005(c), 9010, 9011, 9012, and 9013 of the Solid Waste Disposal Act as in effect on the date of the enactment of Public Law 109–168.

Out of amounts in the Leaking Underground Storage Tank Trust Fund there is hereby appropriated $2,400,000,000 to be transferred under section 9503(f)(3) to the Highway Account (as defined in section 9503(e)(5)(B)) in the Highway Trust Fund.

Out of amounts in the Leaking Underground Storage Tank Trust Fund there is hereby appropriated $1,000,000,000 to be transferred under section 9503(f)(6) to the Highway Account (as defined in section 9503(e)(5)(B)) in the Highway Trust Fund.

Any claim filed against the Leaking Underground Storage Tank Trust Fund may be paid only out of such Trust Fund.

Nothing in the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 or the Superfund Amendments and Reauthorization Act of 1986 (or in any amendment made by either of such Acts) shall authorize the payment by the United States Government of any amount with respect to any such claim out of any source other than the Leaking Underground Storage Tank Trust Fund.

If at any time the Leaking Underground Storage Tank Trust Fund has insufficient funds to pay all of the claims out of such Trust Fund at such time, such claims shall, to the extent permitted under paragraph (1), be paid in full in the order in which they were finally determined.

Paragraph (1) shall not apply to any expenditure to liquidate any contract entered into (or for any amount otherwise obligated) before October 1, 2026, in accordance with the provisions of this section.