The Department of Veterans Affairs is seeking a single Firm-Fixed Price Indefinite-Delivery Indefinite-Quantity (IDIQ) contract for reference lab services to support the Phoenix VA Healthcare System in Arizona. The contract includes a one-year base period with four optional one-year renewal periods, and the total contract duration cannot exceed 66 months. The maximum aggregate value of orders under this contract is $4,250,000, with a guaranteed minimum of $500. Services will be performed at the Carl T. Hayden VA Medical Center in Phoenix, AZ, with potential for additional facilities within VISN 22 to be added. Award will be based on the lowest-priced, technically acceptable offer that meets all minimum requirements and special licensure standards, including CAP or Joint Commission accreditation and a valid CLIA certificate.