Construction contractors interested in performing construction contracts with the department must first complete the Vendor Registration process. A resident Bidder is a person, partnership, or corporation or other business entity authorized to transact business in.The following instructions include details for completing the SDB Participation Submittal. Instructions or submitting proposals are included in each RFP. Visit the Business Hub for the PA Turnpike to gain access to our vendor guide, tools and resources, bids, including procedures, and a range of RFPs.