Amy A. Eyler, PhD, is an Assistant Professor and Assistant Dean of Public Health at the Brown School, Washington University in St. Louis. Her main research interests are health promotion through community policy and environmental interventions, with a focus on physical activity and obesity prevention. For over a decade, she served as Principal Investigator for the Physical Activity Policy Research Network (PAPRN), a national network of researchers to study the influence of policy on population physical activity. Jamie F. Chriqui, PhD, MHS, is a Professor of Health Policy and Administration and a Fellow in the Institute for Health Research and Policy in the School of Public Health at the University of Illinois at Chicago. She is considered a nationwide expert on public health policy surveillance and evaluation and has led or is involved with numerous nationwide studies examining public health policies and their impacts particularly on chronic disease risk factors including tobacco use, physical activity, diet and nutrition, obesity, and substance use. Her research is supported by the National Institutes of Health, the Centers for Disease Control and Prevention, the U.S. Department of Agriculture, and the Robert Wood Johnson Foundation. She holds a B.A. in political science from Barnard College, Columbia University, an M.H.S. Sarah Moreland-Russell, PhD, is an Assistant Research Professor at Washington University in St. Louis. Sarah is involved in several studies including those with national, state, and local level focus that assess public health policy implementation. Specifically, her research focuses on health policy analysis and evaluation, specifically regarding tobacco control and obesity prevention initiatives, organizational and systems science and evaluation, and dissemination and implementation of public health policies. Ross C. Brownson, PhD, is the Bernard Becker Professor of Public Health at Washington University in St. Louis. He is involved in numerous community-level studies designed to understand and reduce modifiable risk factors such as physical inactivity, obesity, and tobacco use. In particular, he is interested in the impacts of environmental and policy interventions on health behaviors and he conducts research on dissemination of evidence-based interventions. His research is supported by the National Institutes of Health, the Centers for Disease Control and Prevention, and the Robert Wood Johnson Foundation.