The government is seeking commercial construction services for auxiliary fuel tank removal and replacement at two NEXRAD radar sites in Cedar City and Promontory Point, Utah. The contractor must provide all labor, equipment, and materials as specified in the statement of work. The period of performance is 120 calendar days after receipt of the notice to proceed. The government intends to award a single firm-fixed-price purchase order on an all-or-none basis with Net 30 payment terms, using a trade-off process. All responsible sources may submit a quotation for consideration.