If you are using an electronic bond, include your bid bond number on the Proposal Bid Bond and attach the Proof of Insurance printed from the Surety's Web Site. The South Central Illinois Mass Transit District (SCT) is seeking proposals for Website Redesign.The City will be accepting submittals electronically using DemandStar (bid submission instructions included in attached documents). The legal name of the bidder must be fully stated. The City of Springfield Electronic Vendor Bids Portal now allows questions on Bid and Proposal opportunities to be submitted online. The following is a listing of various bid postings. Click on any of the titles for the details on that particular bid.