The Department of Health and Human Services, specifically the Indian Health Service, intends to award a sole-source contract to Electronic Security Concepts for Diagnostic Reference Laboratory Testing Services in Phoenix, Arizona. This procurement is based on the authority of FAR 6.302-1, which allows for contracts to be awarded to only one responsible source due to the proprietary nature of the software required for an upgrade. Interested parties are invited to submit capability statements by November 25, 2025, at 4 PM PST, referencing notice number IHS1519990, to assess the feasibility of a competitive procurement. For further inquiries, potential respondents can contact Dale C. Clark at dale.clark@ihs.gov.