220 ILCS 5/7-203
No franchise, license, permit or right to own, operate, manage or control any public utility shall be assigned, transferred or leased nor shall any contract or agreement with reference to or affecting any such franchise, license, permit or right be valid or of any force or effect whatsoever, unless such assignment, lease, contract, or agreement shall have been approved by the Commission. Such permission shall not be construed to revive or validate any lapsed or invalid franchise, license, permit or right, or to enlarge or add to the powers and privileges contained in the grant of any franchise, license, permit or right, or to waive any forfeiture.
The provisions of this Section shall not apply to any transactions by or with a political subdivision or municipal corporation organized under the laws of this State.
220 ILCS 5/7-203