225 ILCS 640/4.5
Every licensed auction market shall establish and maintain a separate bank account designated as "Custodial Account for Shippers' Proceeds", or of some similar identifying designation, to disclose that the depository is acting as a fiduciary and that the funds in the account are trust funds.
(from Ch. 121 1/2, par. 211.5)
(Source: P.A. 86-231.)