Active People, Healthy Nation is a national initiative led by CDC to help 27 million Americans become more physically active by 2027.

"The Physical Activity Guidelines is an essential resource for health professionals and policy makers. It includes recommendations for Americans ages 3 years and over — including people at increased risk of chronic disease — and provides evidence-based advice on how physical activity can help promote health and reduce the risk of chronic disease."

Society of Health and Physical Educators - includes standards, guidelines, and resources for physical education.

“The Guide to Community Preventive Services (The Community Guide) is a collection of evidence-based findings of the Community Preventive Services Task Force (CPSTF). It is a resource to help you select interventions to improve health and prevent disease in your state, community, community organization, business, healthcare organization, or school.”