This two-year NICHD-funded Pretreatment CoOp study adapted and determined the initial feasibility of a seek, test, treat and retain (STTR) model for HIV prevention and linkage to treatment for co-occurring substance use and victimization. Information gleaned from in-depth qualitative interviews and focus groups in the formative phase to adapt the evidence-based STTR model to include linkages to treatment for substance use and victimization for young women.