In addition to meeting any other requirement of law or rule, a person (other than an individual acting as a sole proprietor) may qualify as a bidder or offeror under this Code only if the person is a legal entity prior to submitting the bid, offer, or proposal. The legal entity must be authorized to transact business or conduct affairs in Illinois prior to execution of the contract . This Section shall not apply to construction contracts that are subject to the requirements of Sections 30-20 and 33-10 of this Code. The pre-qualification requirements of Sections 30-20 and 33-10 of this Code shall include the requirement that the bidder be registered with the Secretary of State.
30 ILCS 500/20-43