Since 2001, the Justice Resource Institute (JRI) via the Complex Trauma Treatment Network (CTTN) has been actively involved in the dissemination of Evidence-Based Practices (EBPs) for treating children and youth with histories of trauma through collaboration with SAMHSA’s National Child Traumatic Stress Initiative. However, there remain significant barriers limiting use of EBPs, and JRI wants to understand if its efforts to promote EBPs increase capacity to deliver effective treatment to patients. In this project, ICH will evaluate JRI’s program to increase implementation of EBPs for delivering trauma-informed care to children and youth from five specified populations in the New England area. The ICH team will carry out a longitudinal survey-based study with administrative and patient-facing staff in up 50 JRI-affiliated organizations to evaluate their readiness to deliver EBPs. ICH will also analyze JRI’s patient outcome data and conduct qualitative data collection with providers. This evaluation will provide robust data that will help JRI understand the effectiveness of its capacity-building efforts around EBPs for trauma-informed care.