A request for proposal is a formal business document your organization issues to solicit bids from a service provider for a specific project. What should be included in a request for proposal?Cook County RFP Format. All proposers will use this solicitation format for submitting their proposal. Here are some steps to help you draft a proposal to a company to buy your food: 1. • Original or Copy (as applicable). Community Action Partnership of Lancaster and Saunders Counties has issued a Request for.