This RFP process is intended to identify prospective suppliers for the purposes of negotiating potential agreements. This discussion surveys the following seven critical rules for maintaining procedural correctness in negotiated RFPs.The Request for Proposal (RFP) is a two envelope procurement method that can be used for goods, services or works. RFP EVALUATION: Proposals are requested for the services in the RFP. Wake County Public School System reserves the right to reject any proposal for any reason.