Universal prevention interventions that focus on reducing a variety of risk factors and bolstering protective favors across all individuals in a population have the greatest overall impact on reducing substance use and its related harms. However, planning and implementing environmental and policy strategies at the population level can seem like a daunting task. Utilizing the Strategic Prevention Framework, this workshop will explore specific environmental and policy strategies to reduce youth substance use. Case studies of successful community-wide efforts will give real word examples of putting these principles into action.