Payment shall be made by money order, cashier's check or certified check payable to the Treasurer, State of Illinois. Payment shall be mailed to the Agency at the following address:

Illinois Environmental Protection Agency

Fiscal Services

2520 West Iles Avenue

P.O. Box 19276

Springfield, Illinois 62794-9276

(Source: Amended at 50 Ill. Reg. 311, effective December 23, 2025)