Procurement Services also educates vendors and public purchasers regarding how to participate effectively in the state's procurement process. Announcements. Pdf) and submit the form to OGS in advance of.Learn about our bids, request for proposals, project delivery procedures, and prevailing wage. Construction contractors interested in performing construction contracts with the department must first complete the Vendor Registration process. Bids must be submitted on this form only and bear the handwritten signature of an authorized representative of the firm to be considered valid. Remains incomplete beyond the Project completion deadline specified in the Contract Documents. 13.