Bid Opening Checklist. 2. The Bidder shall complete and submit the form provided in the Bid Proposal.If the Bidder is a Local SBE, and, when applicable, wishes to have its Bid be. Search For A Solicitation. This video will outline the process of submitting a bid on the lavss website. To submit your proposals electronically, register with BidExpress, prior to the due date above. The BID Portal provides information regarding Business Improvement District term lengths, budgets, and assessment information. Any mailed or submitted bid security must be received on or before the time set for the opening of the bids.