The Implementation Guidelines for Services Contract Solicitation Protest. Answer: The City uses the bid proposal to document your contractual obligation to use the subcontractors that you list, including DBE and OBE subcontractors.All proposers shall complete and return with their proposal the "Contractor Responsibility Questionnaire". Proposers are responsible for creating a BAVN profile and completing and submitting the affidavit. See below for additional details about the EBO and the FSHO. 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. Los Angeles area labor costs are higher than the competing neighboring cities and counties.