What is the difference between an RFP, RFI, and RFQ?

An RFP is a Request for Proposal; an RFI is a Request for Information; an RFQ is a Request for Quotation. As a general rule, RFPs are the longest, most-thorough documents. RFIs are more surface-level inquiries which are often done as part of the discovery process. On the other hand, RFQs are typically issued when the buyer has a clear view that the participating vendors meet the requirements and wants to solicit pricing. We have a fuller explanation of the characteristics of these requests on our public-facing website.