The Contracting Officer may use a variety of “notice” and source selection procedures. Such approaches may include, but are not limited to, Requests for Information (RFI), White Papers, oral presentations, providing a sample task, soliciting for a Rough Order of Magnitude (ROM) estimate or requesting a quad chart. The Contracting Officer may use any of these techniques or others to limit the number of proposals to the greatest number that will permit an efficient competition among the most highly rated proposals. The manner of soliciting offers on task or delivery orders will vary with the complexity and dollar amount of the requirement. In accordance with the FAR, these procedures may be tailored as applicable to each order.