This is a Request for Information (RFI) for market research to identify capable small businesses, including SDVOSB/VOSB, interested in providing reference laboratory testing services. The work involves providing all testing services from the specified menu for the Phoenix VA Healthcare System in Phoenix, Arizona. Interested contractors must respond by Tuesday, April 14th, 2026, at 08:00 AM PDT. The response requires detailed capability statements, CLIA certification documentation, and completed attachments to demonstrate the ability to perform the work. No budget information is specified in this notice.