The Department of Health and Human Services, specifically the National Institutes of Health (NIH), is seeking qualified small businesses to provide a self-administration system aimed at researching substance use disorders (SUD). This system will facilitate experiments on drug self-administration behaviors and the influence of social interactions on SUD vulnerability, utilizing operant conditioning for both drug delivery and social interaction. The procurement is critical for advancing understanding of how social experiences affect brain-behavior relationships related to substance use disorders, ultimately informing prevention strategies and therapeutic interventions. Interested parties must submit detailed capability statements by July 17, 2025, at 3:00 PM Eastern Time, and can contact Scott Duernberger or Josh Lazarus for further information.