By Bryce Pardo, Beau Kilmer and Rosalie Liccardo Pacula, RAND Europe/RAND Drug Policy Research Center | EMCDDA

This report provides an overview of the changes in cannabis policies in the Americas and the evidence emerging from evaluations of their impact. Highlighting the challenges in monitoring and evaluating regulatory changes in the drugs field, it will be of particular interest to those involved in planning or evaluating any modifications to cannabis regulation.