30 ILCS 500/33-55: Prohibited conduct.

No construction management services contract may be awarded by the Board on a negotiated basis as provided in this Article if the construction manager or an entity that controls, is controlled by, or shares common ownership or control with the construction manager (i) guarantees, warrants, or otherwise assumes financial responsibility for the work of others on the project; (ii) provides the Board with a guaranteed maximum price for the work of others on the project; or (iii) furnishes or guarantees a performance or payment bond for other contractors on the project. In any such case, the contract for construction management services must be let by competitive bidding as in the case of contracts for construction work.