The Department of Health and Human Services, specifically the Centers for Disease Control and Prevention (CDC), intends to award a sole source firm fixed price purchase order to Thermo Electron North America LLC for an annual maintenance agreement for a Thermo Orbitrap Fusion Lumos mass spectrometer and a Thermo RSLCnano UPLC system. This procurement is essential as these highly complex instruments require specialized service and maintenance, which can only be provided by Thermo Electron North America due to their proprietary parts and exclusive service capabilities. The anticipated period of performance for this contract is from January 1, 2026, through December 31, 2028, with interested vendors encouraged to submit their interest and capability to respond to the requirement by emailing Denedra Hardy at qfa5@cdc.gov by December 24, 2025.