Bids will be accepted from only those companies that request and receive written Authorization to Bid from IDOT's Central. Bureau of Construction.Contractors wanting to bid on items included in a particular letting must submit the properly completed "Request for. Bids shall be accepted electronically at the time and in the manner designated in the invitation for bids. Specifications and complete bid documents may be obtained from the Village of Hanover. Failure to comply will result in non -issuance of an "Authorization To Bid. No proposal will be accepted via paper or email. Bidders wishing to bid on the approved substitution shall submit a complete base bid as specified in the project manual. Sign up to receive a text message or email when new bids are added!