Bystep guide to understanding the bidding process, along with tips on submitting a successful bid. The complete Bid package consists of a separately sealed administrative proposal and cost proposal.Please complete the bidder section on this sheet even if you choose not to bid. Bidder must include in its bid response all forms and documents listed on the Document Enclosure Checklist. Fill out and submit Substitute W-9 Form available from the New York City Comptroller. 2. You must submit a completed Bid Proposal (Bid Form A-1, Page 15) and a completed Bid Bond with your Bid.