The Department of Health and Human Services, specifically the Centers for Disease Control and Prevention (CDC), is seeking to award a sole source firm fixed price contract to Bruker Scientific LLC for an annual maintenance service agreement for the Bruker timsTOF Pro mass spectrometer and nanoElute UPLC system. This contract will cover preventative and remedial maintenance services necessary for compliance with the Quality Management System (QMS) within the Biotechnology Core Facility Branch (BCFB), ensuring the operational integrity of critical analytical equipment used for proteomics analysis. The anticipated period of performance for this contract is from February 2, 2026, to February 1, 2027, with two optional one-year extensions available. Interested vendors are encouraged to express their interest and capability by submitting proposals to the Contracting Officer at uex0@cdc.gov by 5:00 PM (ET) on December 26, 2025.