The standard purchasing process for Allegheny County involves: requisitioning; public solicitation; bid and proposal receipt; evaluation and contract award. All Bids thereafter shall, in a timely manner, be referred to the Division of Purchasing and Supplies for tabulation. 13.RFPs outline the bidding process and contract terms and provide guidance on how bids should be formatted and presented. If a bid bond is required, make sure it is in the correct amount and properly signed. The bidder must one original completely executed required bid document.