The Department of Veterans Affairs intends to award a sole source contract for HistoTrac Software Maintenance Services to One Lambda INC. This contract is essential for maintaining the HistoTrac System, which is critical for tracking compatibility testing results for transplant patients, ensuring accurate laboratory results vital to patient care and transplant surgeries. The estimated cost for the initial year is $17,957.14, totaling $97,261.65 over five years, with the procurement justified under FAR guidelines due to the proprietary nature of the software that only One Lambda can service. Interested vendors are encouraged to submit their capability statements by April 4, 2025, to Savannah Weberg at savannah.weberg@va.gov, although the government currently believes that One Lambda INC. is the only responsible source for this requirement.