ABOUT IDOT PROPOSALS: All proposals are potential bidding proposals. The City seeks proposals from qualified vendors detailing their proposed plan to implement and complete the project.Each proposal contains all certifications and affidavits, a proposal signature sheet and a proposal bid bond. PREQUALIFICATION. (Exhibits 2-5: Compliance Requirements-Sample Compliance Reporting Forms). Exhibit 2 - IBHE Illinois_Works_Apprenticeship_Initiative_Periodic_Reporting_Form.