35 Ill. Adm. Code 270.606
Refund and Underpayment of Fees
Section 270
Section 270.606 Refund and
Underpayment of Fees
a) A fee remitted to the Agency under this Subpart shall not be
refunded in whole or part unless the amount paid is in excess of the amount
billed or the amount billed is determined to be incorrect.
b) An owner or operator of a source entitled to a refund under
subsection (a) above must request such refund in writing; otherwise, the amount
that was overpaid incorrectly shall be credited against future fees for which
the source will be billed under this Subpart.
c) If the owner or operator of a source submits to the Agency an
amount less that the amount due pursuant to Section 39.5(18) of the Act and
this Subpart due to an error in the source's calculation of allowable emissions
or an error in the Agency's calculation of fees, the owner or operator shall submit
the difference between the amount paid and the amount due in accordance with
subsections (1) or (2) below.
1) If a source discovers that its calculation of allowable
emissions was incorrect, it shall promptly submit to the Agency the correct
information and the amount of underpayment.
2) If the Agency discovers that it has incorrectly billed the
source, the Agency shall promptly notify the owner or operator of the CAAPP
source. The Agency must notify the owner or operator of the incorrect billing
during the term of the permit. The owner or operator of the CAAPP source shall
submit the amount of underpayment within 45 days after receipt of the notice.