This is a total small business set-aside for a firm-fixed-price purchase order, including fixed-price rates for unscheduled and emergency services. The total estimated value exceeds the simplified acquisition threshold but is under $9 million. The period of performance is one 12-month base period plus four 12-month option periods, for a total potential of five years. The government will issue a single purchase order to the responsible quoter providing the best value. No location for performance is specified.