The National Physical Activity Plan Alliance is a not-for-profit organization committed to ensuring the long-term success of the National Physical Activity Plan (NPAP). The alliance is governed by a board of directors composed of representatives of organizational partners and at-large experts on physical activity and public health. The key objectives of the alliance are to support implementation of the NPAP’s strategies and tactics, expand awareness of the NPAP among policy makers and key stakeholders, evaluate the NPAP on an ongoing basis, and periodically revise the NPAP to ensure its effective linkage to the current evidence base. The National Coalition for Promoting Physical Activity (NCPPA) is a blend of associations, health organizations, and private corporations advocating for policies that encourage Americans of all ages to become more physically active. NCPPA spearheads federal policy and advocacy work in support of the National Physical Activity Plan’s recommendations, and the organization maintains a strong voice for physical activity in Washington, DC, where NCPPA members and staff work together to encourage federal legislators to make policy changes that promote regular physical activity in all facets of life. Russell Pate, PhD, is a professor in the department of exercise science at the University of South Carolina at Columbia. Pate led the development of the 2010 U.S. National Physical Activity Plan and served on the 2008 U.S. Physical Activity Guidelines Advisory Committee. He is the chairman of the board of directors of the National Physical Activity Plan Alliance and chairman of the coordinating committee of the National Physical Activity Plan Alliance. Pate is a past president of the American College of Sports Medicine (ACSM) and served as lead author of the 1995 CDC-ACSM Statement on Physical Activity and Public Health. He is also past president of the National Coalition for Promoting Physical Activity. In 2012, Pate received the Honor Award from the ACSM. He received the Honor Award from the Science Board of the President’s Council on Physical Fitness and Sports in 2007. He resides with his wife in Columbia, where he enjoys running, attending theater performances, and watching collegiate athletics. David Buchner, MD, MPH, is a Shahid and Ann Carlson Khan professor in applied health sciences in the department of kinesiology and community health at the University of Illinois at Urbana-Champaign. From 2008 to 2013, he directed the master of public health program in his department. He is a board member for the National Physical Activity Plan Alliance. From 1999 to 2008, he was chief of the Physical Activity and Health Branch at the Centers for Disease Control and Prevention. In this role, Buchner chaired the writing group for the 2008 Physical Activity Guidelines for Americans and participated in numerous public health initiatives to promote physical activity. Buchner’s research has focused on physical activity and aging. He has studied the role of physical activity in preventing functional limitations, disability, and falls. His favorite recreational activity is backpacking and hiking with his family.