View Public Works' open solicitations, and learn more about how to register as a supplier and submit a bid or proposal. Discover what a bid proposal is, the elements of a bid proposal, how to create one and a template and example that can guide you.In the event a sealed bid is hand carried, it is the sole responsibility of the bidder to assure the bid is in possession of the CCAC. Bids shall be submitted in a sealed envelope clearly marked on the outside with the words "BID.