All interested bidders should take careful note of the due dates, required submissions, and Small. Business Enhancements.B) BID SUBMITTED: Completed bid must be submitted in a sealed envelope with bid number and name clearly typed or written on the front of the envelope. The sign in sheet will be available up until the commencement of the preproposal conference. Craft persuasive bid proposals for construction projects with this comprehensive guide. Explore key components, from project overview to pricing details. 1 Bidders shall completely fill out the bid, the questionnaire and the affidavit contained in the Instructions to Bidders. Bid: A complete and properly signed proposal to do the Work for the sums stipulated therein, submitted in accordance with the Bidding. Documents.