By completing and signing this Form, the Offeror makes an Offer to the. State of Illinois that the State may accept.The Principal may submit an electronic bid bond, in lieu of completing the above section of the Proposal Bid Bond Form. The City of Springfield Electronic Vendor Bids Portal now allows questions on Bid and Proposal opportunities to be submitted online. Proposal. By filling out this Contract form, the Vendor proposes to enter into this Contract for delivery of the Products for the, stated prices and other. Springfield, IL 62764.