Submit your bid prior to the bid end date. Once the date and time passes, the bid will disappear.Bids are generally submitted in the county's electronic bidding system, Supplier Portal. Each invitiation to bid is posted on our website and can be found under the section titled "Current Solicitations". , Central Time, on Monday, February 10, 2025. If your business or someone you know is interested in submitting a proposal, please see the Request for Proposal document below for submissions! This is not a bid but a request for proposals that could become the basis for negotiations leading to a contract with a vendor.