The purpose of the Nutrition and Physical Activity Policy Resource Guide is to create a comprehensive resource for the prioritization and development of nutrition and physical activity policies at state, local, and private jurisdictions. Where applicable, evidence of policy effectiveness is provided. Institutional and public policy changes are critical to achieving sustained behavioral change. Policy and environmental changes that support healthy communities, healthy organizations, and healthy choices are cornerstones in the public health world. The resource guide divides the nutrition and physical activity sections into domains of communities, schools, worksites, and healthcare.