35 Ill. Adm. Code 251.208
Time and Method of Payment
Section 251
Section 251.208 Time and
Method of Payment
a) The owner or operator of a site shall make payment to the
Agency by either of the following methods:
1) Payment shall be made annually in the amount described in
Section 251.201; or
2) Payment may be made in advance in the amount described in
Section 251.201 multiplied by the number of years for which the operating
permit has been issued to the owner or operator of a site by the Agency's
Bureau of Air or multiplied by the number of years remaining on the
longest-term valid operating permit issued to the owner or operator of a site.
b) The due date of payment for each year shall be on the date 45
days subsequent to the original billing date.