Ill. Admin. Code tit. 44, § 8.4599
4) One of the exemptions of Section 10 of the Procurement of Domestic Products Act applies.
b) This Section applies to supplies purchased by the State that have undergone some manufacturing process that changes the raw material or components into a different product. The following examples show how to interpret this Section:
c) Specifications for manufactured supplies shall include a reference to the preference established in this Section. The preference shall be as follows: