The findings in this report are based on an analysis of two years of clinical assessment and treatment placement data in three established New York City drug courts. Findings suggest that case management staff in these courts regularly completed a lengthy bio-psychosocial assessment of each participant, but ultimately relied on a small number of factors related to current and past drug use, social support, employment, and residential stability when making treatment planning decisions. Further, treatment planning decisions were broadly informed by a desire to place drug court participants in the “least restrictive” treatment setting as an initial modality. These findings provide important context for interpreting the outcomes of a larger study, Implementing Evidence-based Assessment and Treatment Matching: A Feasibility and Impact Study in Three New York City Drug Courts.