RFP vs RFQ vs IFB vs RFI: Government Solicitation Types Explained

Request for Proposal (RFP) - Negotiated Procurements

Request for Quotation (RFQ) - Simplified Procurements

Invitation for Bid (IFB) - Sealed Bidding Procurements

Request for Information (RFI) - Market Research

Comparing Document Types and Selection Factors

• Request for Proposal (RFP): Negotiated procurement seeking comprehensive proposals evaluated across multiple weighted factors. Requires substantial response effort developing detailed technical approach, management approach, past performance documentation, and competitive pricing. Best value evaluation methodology allows tradeoffs between technical excellence and price, potentially awarding to other than lowest price. Used for complex requirements where solution approaches vary.
• Request for Quotation (RFQ): Simplified solicitation seeking price quotes for clearly defined requirements. Requires lower response effort focused primarily on pricing and delivery commitments. Price is typically the primary selection factor for quotes meeting stated specifications. Technical evaluation confirms specification compliance rather than assessing approach innovation. Used for commercial items, simplified acquisitions, and orders against existing vehicles.
• Invitation for Bid (IFB): Sealed bidding solicitation where lowest-priced responsive bid from responsible bidder wins contract award. Requires precise compliance with every specification without deviation. No technical evaluation beyond binary pass/fail compliance determination. Price is the exclusive selection factor among compliant bids. Used for clearly specified requirements where price is paramount.
• Request for Information (RFI): Market research document gathering industry information without contract award. No competitive evaluation or selection occurs. Information helps agencies understand market capabilities and plan procurements. Responses demonstrate interest and capability without binding commitments. Used before formal solicitations to inform acquisition strategies.

Strategic Response Approach by Document Type

Additional Federal Procurement Document Types

Common Mistakes in Document Type Response

• Developing elaborate technical proposals for RFQs where price is the primary selection factor, wasting resources on unnecessary proposal content that evaluators will not consider in selection decisions.
• Taking exceptions or proposing alternatives in IFB responses, resulting in non-responsive bid rejection regardless of price competitiveness or solution quality.
• Treating RFIs as binding solicitations by committing excessive resources or expecting contract award from information responses.
• Providing proprietary technical approaches in RFI responses that competitors can then adopt, losing competitive advantage before formal solicitation.
• Underfunding RFP response efforts and producing non-competitive proposals that fail to demonstrate technical capability or past performance.
• Missing the distinction between price-based and best value evaluations, resulting in inappropriate competitive positioning.
• Assuming IFB specifications have flexibility when sealed bidding requires exact compliance without deviation.