There is strong interest in policy and environmental intercentions to improve child health and prevent obesity and in prioritizing natural experiments to evaluate their influences at the population-level. Although state-level policies for schools are especially imporatant natural experiments, the influence of these policies may be bolstered or hampered by environmental factors near schools. As a result of viewing this presentation on thesocial, policy and enviornlmental determinants of child health, participants will be able to:

1. Understand the role of physial education policies in improving children's fitness in school settings.
2. Identify environmental factors near schools that may enhance or hinder the effectivenes of school policies aimed to promote child health.
3. Appreciate the imporatance of investigating joint influences of policies and environments on child health.
4. Identify future research questions pertinent to social environmental and policy deteriminants of childresn's health.