The Department of the Treasury, specifically the Internal Revenue Service (IRS), has issued a special notice regarding the award of a delivery order for the SYSTRAN Translate Server 10 (STS10) and its maintenance services to Systran Software, INC., on a sole-source basis. This procurement is necessitated by the IRS's unique requirement for a high-volume translation solution that can efficiently process large quantities of data, which is critical for investigations related to international tax and money laundering crimes. The justification for this limited-source acquisition is based on the proprietary nature of the software and the vendor's unique capabilities, as confirmed by market research conducted from November 2023 to April 2024. For further inquiries, interested parties may contact Mach Ngo at mach.ngo@irs.gov.