RFB

A Request for Bid is a solicitation document inviting suppliers to submit sealed bids for clearly defined requirements where award will be made to the lowest responsive, responsible bidder. RFB is often used interchangeably with Invitation for Bid in contexts where price is the primary selection criterion.

RFB procurements are appropriate when requirements are well-defined, specifications are clear, and there is no need to evaluate technical approaches or conduct negotiations. Bidders must meet all mandatory requirements, and award goes to the lowest price that conforms to specifications. Understanding whether a procurement is an RFB versus RFP helps contractors develop appropriately focused responses.