Despite global interest in treating substance use disorders as a health issue, many countries choose a criminal justice response instead. The goal of this project was to research the readiness of countries to establish or expand alternatives to incarceration (ATIs) for persons with substance use disorders (SUDs) in countries around the globe. This report gathers, compiles and analyzes information on alternatives to incarceration for persons involved in the criminal justice with substance use disorders, worldwide (193 UN Member States plus Greenland, Kosovo, Palestine and Taiwan). As such, this report presents the first attempt to compile this information globally and completely. A video of the webinar meeting with the presentation of results is available at: https://www.youtube.com/watch?v=p3_h6hMOvTc.