Workplace and Employment Standards → Services → File Bid Bond Form. Bids will be opened at or after the time indicated for receipt of bids as indicated in the Invitation to Bid. 5.Ready to prepare your bid for submission? Purchasing will request at least three (3) competitive bids or quotes. Building. City of Oakland. City. Plan check completed; Contractor to complete Waste. To fill out the bid request, you'll need to gather the necessary company details and documentation.