You must complete at least one (1) Optional Line Item or all Required Line Items in the Items (F) tab in APP in order for your Offer to be considered. This document is a quick-reference guide for suppliers who would like to submit a response to a solicitation via the APP Supplier Portal.How do I submit a bid or proposal? All formal bids and proposals shall be submitted as specified in the solicitation document. Offeror may be requested to furnish samples of items proposed at no cost to the City. DESCRIPTION: The City of Prescott (City) is requesting bids for the purchase of Sodium. Obtain a Surety Bond. The ADOT construction contract you are bidding likely requires a surety bid bond or other proposal guaranty. Failure of Bidder to complete and return all required bid documents might result in the rejection of a bid. 5. Addenda. Documents, as stipulated in the Contract Documents and the RFP.