This page is where the public copy of bidder submissions are posted for public review. The Bid Letting Unit is responsible for construction project advertisements, assisting with electronic bidding, fulfilling requests for eligibility to bid.MITN participating local government purchasing departments invite vendors to register for exclusive access to RFPs, bids and awards on the bid system. MEDC will post all Public Notices Requests for Proposals on this page. Click on each RFP for more information. For more information please call 269-983-7111, Ext. 8200. If you would like to be on the County bidder's list, fill out the Vendor Application Form. If questions arise during your registration, call the Senior Procurement Accountant at 989-837-3331. Contractors and vendors must download ALL documents associated with a specific request for bids. Bids shall be publicly opened and read aloud at a date, time, and place designated in the invitation to bid.