Invitation for bid
（重定向自Invitation for bids）
An invitation for bid (IFB) or invitation to bid (ITB) is an invitation to contractors or equipment suppliers, through a bidding process, to submit a proposal on a specific project to be realized or product or service to be furnished. IFB is generally the same thing as Request for Quotation (RFQ). The IFB or RFQ is focused on pricing, and not on ideas or concepts.