(30 ILCS 500/20-70)

Sec. 20-70. Finality of determinations. Except as otherwise provided in this Code, determinations made by a chief procurement officer, State purchasing officer, or a purchasing agency under this Code are final and conclusive unless they are clearly erroneous, arbitrary, capricious, or contrary to law.

(Source: P.A. 96-795, eff. 7-1-10 (see Section 5 of P.A. 96-793 for the effective date of changes made by P.A. 96-795).)