This form will assist staff in evaluating the type of program offered, and in determining if the program will fit the needs of the Library. To the Board of Supervisors of Contra Costa County: The undersigned, as bidder, declares that the only persons or parties involved in this proposal.If you plan to submit an application for an annexation, detachment, or reorganization of a local agency(ies), this page has all the documents you will need. Proposals must be submitted in the following order with documents as described. (unless otherwise noted).