50 ILCS 505/4
Current through Public Act 103-1052
Any bill approved for payment pursuant to Section 3 shall be paid within 30 days after the date of approval. If payment is not made within such 30 day period, an interest penalty of 1% of any amount approved and unpaid shall be added for each month or fraction thereof after the expiration of such 30 day period, until final payment is made.
50 ILCS 505/4