DES has launched a new bidding portal (Bonfire) that allows you to submit bids and proposals to DES online. This page provides a general overview of the public works bidding and award procedures for local governments in Washington State.Have a Washington Department of Revenue state excise tax registration number, as required in Title 82 RCW;. 6. Bidders shall complete and sign the Bidder's Construction Experience form contained in the Proposal. Said form must be submitted with the bid proposal.