Find information about contracting with Hennepin County, including processes, forms, and diversity rules for goods and biddable services. Once you are logged into the Supplier Portal select Contracting opportunities. 2.A page will display that has two tabs. HUP Director and project leads discuss project details. The Bidding Requirements consist of the Invitation to Bid, Instructions to Bidders,. The contract assessment process takes 60-90 calendar days. 1. Complete the contract request packet. Proposals will be accepted via the Hennepin County supplier portal until 1 p.m. This Request for Proposals ("RFP") is an invitation for Proposers to submit a proposal to the County. A contract award is subject to City Council approval, at whose discretion any or all quotes may be rejected.