Vendors and suppliers interested in doing business with Allegheny County can review open solicitations for Purchasing and Supplies bids on the Bonfire website. The standard purchasing process for Allegheny County involves: requisitioning; public solicitation; bid and proposal receipt; evaluation and contract award.Specify the amount and type of performance bond or other security required as well as insurance requirements. Bid bonds are required on this project per Section 002113 Instructions to bidders' Section 10. The written memorandum shall be filed in the office of the Purchasing Officer and a written contract shall be filed in the office of the Controller.