Technical Assistance Publication (TAP) 31: Implementing Change in Substance Abuse Treatment Programs offers guidance on how to integrate evidence-based practices (EBPs) for substance abuse treatment into clinical practice. Informed by the realities of many substance abuse treatment providers, change based on proven methods. Through a practical step-by-step narrative, it explains how to assess an organization's capacity to identify priorities, implement changes, evaluate progress, and sustain effective programs over the long run. This TAP complements the best practices offered to administrators in the Center for Substance Abuse Treatment's (CSAT's) Treatment Improvement Protocols (TIPs) and will be of use for any treatment program or agency implementing change or EBPs. The audience is administrators attempting to integrate EBPs into their programs.