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Request for Proposal vs. Invitation for Bid

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Request for Proposal versus Invitation for Bid Sealed bidding is the means by which government contracts competitively when requirements are clear, accurate and complete. An Invitation for Bid (IFB) is typically used when the scope of work or project specification is well defined; payment will be based on a lump sum or per unit basis and no discussions or negotiations are required (Koch, 2012). Examples of IFB services include trash and debris removal, oil testing services, parking lot sweeping, recycling services. IFBs usually include very detailed specifications, preparation instructions, and details of the conditions of purchase, delivery and payment schedule. The IFB also outlines the date and time of bid opening. Contracts are usually awarded to the lowest priced bidder whose bid conforms to all requirements of the invitation. Winners are those most advantageous to the government in terms of price, and price-related factors included in the invitation. A Request for Proposal (RFP) is generally used when the scope of work is uncertain, such as when "emerging" technology is involved. If it is necessary to discuss warranty provisions or design considerations or look at and differentiate between the qualifications of the proposers and their approach to the work, the RFP is favored. Other RFP precursors may be a need to conduct negotiations prior to making a contract award (Power Engineering, 1997). Examples of services procured with an RFP include attorney services,

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