The Department of Veterans Affairs plans to award a firm-fixed-price sole source contract to Roche Diagnostics Corporation for OEM-authorized service and maintenance of three Roche BenchMark Ultra IHC/ISH staining instruments at the South Texas Veterans Health Care System in San Antonio, Texas. The estimated total contract value is $249,252.94, covering a one-year base period plus four one-year option periods. Services include unlimited on-site support by certified Roche field engineers, 24/7 reporting, repair dispatch, all parts and annual preventative maintenance, applications troubleshooting, and installation of manufacturer modifications. The sole source justification is based on Roche being the only manufacturer and authorized service provider for these proprietary instruments, with market research finding no other capable sources. This is a follow-on to an incumbent sole source contract for the same requirement.