The Centers for Disease Control and Prevention (CDC) have released new recommendations to promote physical activity by implementing a combination of transportation and land use interventions. The recommendations stem from the Community Preventive Services Task Force (CPSTF), an independent panel of 15 public health and medical experts appointed by the CDC Director with the objective of identifying evidence-based interventions to improve health and quality of life. The panel includes distinguished doctors, professors, and researchers with expertise in health promotion and disease prevention. They conducted a comprehensive review of 90 studies examining the relationship between the built environment and physical activity to determine how best to promote exercise. Their new recommendations are an important step forward to understanding the linkages between health-related behavior and how we build our towns and cities.