State of Illinois Capital Development Board (CDB) and Elgin Community College Invites You To Attend. We invite all qualified firms that are contractors, subcontractors, engineers, architects, suppliers, and professional services to learn about the BEP State certification process, CDB's bidding process, prequalification process, diversity requirements, and vertical construction opportunities on state-owned properties. The Capital Development Board will strive to ensure that our state’s diverse communities are reflected throughout CDB’s public service and vertical infrastructure efforts across the State.