35 Ill. Adm. Code 830.604
Financial Assurance Fund
Section 830
Section 830.604 Financial
Assurance Fund
a) The operator must maintain financial assurance equal to or
greater than the amount provided as a written cost estimate in the financial
assurance plan.
b) The funds comprising financial assurance must be used to cover
the cost of closure.
c) Upon certification of completion of closure, any financial
assurance funds remaining will be made available for unrestricted use.