 A series of measurements will be collected on participating child care center directors and staff at three time points - baseline, follow-up 6 months, and maintenance 18 months. Primary outcome measures will assess moderate to vigorous physical activity MVPA of center staff. Secondary outcomes measures will assess staff members behavioral health risk factors as well as centers programs, policies and environment around worksite wellness and teachers interactions with children around physical activity. These measures will be collected during a one-day, on-site visit to the child care center, and supplemented with physical health assessments completed at the kick-off event. Center visits will be conducted by research assistants who have undergone extensive training and certification on all measurement procedures and are blinded to study-arm assignment. Similar data collection protocols will be used at all three time points - baseline, follow-up and maintenance. 