"Data Trends" reports present summaries of research on mental health services for children and adolescents and their families. The article summarized in this "Data Trends" discusses national data on transition services available for children served within the state child mental health systems. These data are derived from information provided by one representative from each state. As noted by the authors, respondents may have been unaware of some of the transition services available due to decentralization or privatization of the child mental health system in a few states. Nevertheless, it is evident that the majority of youth are not receiving the services they need. The authors conclude that the child and adult mental health systems have "been generally unsuccessful in engaging together to provide continuing support services even for those children who will qualify for adult services". They identify a number of necessary actions essential to the improvement of transition services. These include attention to system fragmentation and perceived barriers, prioritization of transition services, involvement of youth and advocacy organizations, efforts to secure new funding and blend existing funding, demonstration of service outcomes, and building on preexisting interagency agreements and partnerships. [This "Data Trends" presents a summary of: Davis, M. & Sondheimer, D. L. (2005). State child mental health efforts to support youth in transition to adulthood. "Journal of Behavioral Health Services & Research," 32, 1, 27-42.]