35 ILCS 200/12-60
When the board of review in any county with less than 3,000,000 inhabitants decides to reverse or modify the action of the chief county assessment officer, or to change the list as completed, or the assessment or description of any property, the changes shall be entered upon the assessment books.
On or before the annual date for adjournment as fixed by Section 16-35, the board of review shall make a full and complete list, by township if the county is so organized, of all changes in assessments made by the board of review prior to the adjournment date. The list shall contain the information enumerated in Section 12-25 and shall show the amount of the assessment as it appeared prior to and after being acted upon by the board of review. The board of review need not show on the list changes which only correct the description of the assessed property, the ownership of the property, or the name of the person in whose name the property is assessed. Changes by the board that raise or lower, on a percentage basis, the total assessed value of property in any assessment district or the value of a particular class of property, need not be shown on the list. However, the list shall contain a general statement indicating that a change has been made and shall state the percentage of increase or decrease.
The board of review shall deliver a copy of the list to the county clerk who shall file it in his or her office, and a copy to the chief county assessment officer. The lists shall be public records and open to inspection of all persons, and shall be preserved or destroyed in the manner described in Section 16-90.
35 ILCS 200/12-60