The National Institutes of Health (NIH), specifically the National Institute of Allergy and Infectious Diseases (NIAID), intends to negotiate a sole-source contract with SPT Labtech Limited for the renewal of an annual service contract for two Firefly instruments used at the Vaccine Research Center in Bethesda, Maryland. This procurement is essential for maintaining the specialized equipment that supports critical research on HIV and other viruses, ensuring consistent and reliable assay results that are integral to the lab's ongoing studies. The Firefly instruments are uniquely suited for the lab's needs, and utilizing alternative services or products could jeopardize the integrity of research data and outcomes. Interested vendors capable of providing comparable services may submit a capability statement via the NIAID electronic Simplified Acquisition Submission System (eSASS) by May 18, 2025, at 5:00 PM ET, with all submissions requiring prior registration in the eSASS system. For further inquiries, contact Dana Monroe at dana.monroe@nih.gov or by phone at 406-375-9814.