This report summarizes information, including selected indices of nutritional status, as reported from 28 states and the District of Columbia to the Nutritional Status Surveillance System. This system has two components, one addressing nutritional status among high-risk pediatric populations, and the other addressing nutritional status among pregnant women from generally low-income, high-risk groups. Data came from a variety of sources including health department clinics and other health and nutrition programs. Statistics are presented on both pediatric surveillance results and pregnancy nutrition surveillance. The history of the surveillance system is traced and its methods and procedures are explained. A description is provided of the surveillance population, survey quality control, and interpretation of trends. (JD)