The National Institutes of Health (NIH) intends to award a firm-fixed-price purchase order to BD Biosciences for a maintenance contract covering a BD FACSDiscover S8 BRVYGUV (SN: R66515800038), citing FAR 6.302-1 as a sole-source action. The instrument supports the NIAMS Flow Cytometry Section, which provides centralized flow cytometry and cell sorting services for NIH intramural research and relies on this sorter’s unique combination of full-spectrum flow cytometry with real-time, camera-free imaging. The maintenance agreement is intended to ensure continued operation and reliability, minimize downtime, and sustain high functionality for ongoing research. Award is anticipated approximately five calendar days after the notice closes, unless the Government determines another vendor can meet the requirement.