Notice of Invitation for Proposal: The State Auditor's Office (SAO) invites proposals for auditing. What is the difference?• Typically, negotiation is NOT ALLOWED in the Invitation for Bid solicitation method. What options does the city have if the city receives no bids in response to a request? (i) For a proposal to be considered for award, the respondent must follow the instructions and meet the requirements specified in the RFP. A request for proposal (RFP) is a business document that announces a project, describes it, and solicits bids from qualified contractors to complete it. In competitive negotiation, TxCDBG requires that the Request for Proposal (RFP) be published in a local newspaper and sent to at least five (5) firms. Sealed Request for Proposals (RFP) will be received at the County Purchasing Department, 800. E. Overland, RM 300, El Paso, Texas 79901 before p.m.