65 ILCS 5/3.1-30-25

The corporate authorities of municipalities incorporated and existing under special Acts that now provide for or require the election of one or more of the appointed officers referred to in this Division 30 may adopt this Division 30 by resolution and may, instead of the provisions or requirements of the special Acts, provide by ordinance for the appointment of those officers by the corporate authorities and prescribe their terms, duties, compensation, and the amount of any bond required.