used, which allow for repeated purchases at predetermined fair and reasonable prices. Above the simplified acquisition threshold, an indefinite-delivery, indefinite-quantity (IDIQ) contract may be executed, as described in FAR Part 16.5. Availability of existing contract vehicles: Agencies may use existing BPAs or BOAs, provided that the use is within the general scope of the contract. For example, an agency can make use of Federal Supply Schedules as described in FAR Subpart 8.4. Schedules offered by the General Services Administration (GSA) provide a number of pre-competed contract vehicles that give an immediate ability to obtain goods or services without going through the full contracting process. Mandatory Sources: FAR Part 8 discusses the mandatory use of certain sources for acquiring some types of supplies and services. These sources include the Federal Prison Industries, various vendors who hire blind and disabled persons, and Federal Supply Schedules. Certain items cannot be purchased by most agencies, such as passenger motor vehicles; all passenger motor vehicles must be purchased by GSA, unless a waiver is obtained. This is due in part to Congressional restrictions on the use of appropriated funds to purchase vehicles and the special authority that GSA has as the Federal Government's motor pool manager. Small Businesses and Socioeconomic Issues: contracting with small businesses and firms affected by certain socioeconomic factors require a highly complex subset of Government regulation which is described by FAR Parts 19 and 26. Other requirements often apply to acquisitions depending upon the circumstances. These can include those listed in FAR Part 36, Construction and Architect-Engineer Contracts; FAR Part 41, Acquisition of Utility Services; and FAR Part 37, Service Contracting. Outside of a specified exception, acquisitions having a cost above the simplified acquisition threshold or the special authority under FAR Subpart 13.5 must be performed using the process specified under FAR Part 14, Sealed Bidding, or FAR Part 15, Contracting by Negotiation. Workload of the Government contracting office and requiring activity. Contract vehicle selection (primarily indefinite duration, indefinite quantity (IDIQ) versus stand alone "C" contracts), market research, competition, use of performance incentives (or not), earned valued management system (EVMS) use, length of contract, number of options periods, simplification of source selection strategy and evaluation factors, inattention to fine acquisition details such as with regard to technical data rights, bundling of contract requirements into larger contract vehicles, and other decisions having a direct impact on acquisition outcomes including cost are frequently