This opportunity is for a firm fixed-price contract to provide annual maintenance for Cepheid GeneXpert Analyzers at the 51st Medical Group, Osan Air Base. The contractor must supply all labor, travel, parts, and equipment for on-site preventative maintenance, calibration, and unscheduled repairs, ensuring compliance with OEM specifications and healthcare standards. The base period of performance runs from September 1, 2026, to August 30, 2027, with four one-year option periods. The procurement uses a tiered evaluation process under the US-ROK SOFA, requiring offerors to identify as either a Tier 1 (Korean Local Source) or Tier 2 (U.S./Off-Shore Source). No specific budget amount is provided in the description.