415 ILCS 125/320
Except as otherwise provided in this paragraph, all money received by the Department under this Law shall be deposited in the Underground Storage Tank Fund . All money received for aviation fuel by the Department under this Law on or after December 1, 2019 and ending with returns due on January 20, 2021, shall be immediately paid over by the Department to the State Aviation Program Fund. The Department shall only pay such moneys into the State Aviation Program Fund under this Act for so long as the revenue use requirements of 49 U.S.C. 47107(b) and 49 U.S.C. 47133 are binding on the State. For purposes of this Section, "aviation fuel" means jet fuel and aviation gasoline. Beginning July 1, 2022 and through June 30, 2023, all money received by the Department under this Law shall be deposited into the Transportation Renewal Fund.
415 ILCS 125/320