In March 2012, Research Connections published its resource list on child care and obesity prevention. Since then there has been more research on promoting physical activity for young children in early care and education programs. Two major strategies for increasing opportunities for physical activity are through the adoption and implementation of specific practices in early care and education settings and through child care regulations and requirements. This Topic of Interest focuses on research summaries in these two areas--interventions to increase opportunities and caregiver practices promoting physical activity, and regulations for specific facility arrangements, schedules, staff behaviors, and policies to ensure these opportunities and practices in licensed child care settings. (author abstract)