Ill. Admin. Code tit. 92, § 1710.172
a) Relocators must post the following notice at all locations at which vehicles may be reclaimed:
Notice: The Illinois Commerce Commission requires that we give a copy of our Relocation Tow Record form to you as a receipt. Please keep your copy for your records.
(Source: Added at 14 Ill. Reg. 10310, effective July 1, 1990)