This conference was held to enhance communication between the Office of Special Education Programs (OSEP) and State education agency staffs, and to furnish information and technical assistance to State agencies in the areas of data management and improvement of data reliability, validity, and comparability. Abstracts of presentations include the following topics: changing criteria for evaluation of special education and implications on data collection; summary of the reauthorization of the Individuals with Disabilities Education Act and the impact on data participating students, staff, project implementation, and outcomes, besides providing conclusions and recommendations. (JDD) National Clearinghouse for Professions in Special Education; the Cooperative Education Data Collection and Reporting Standards of the National Center for Education Statistics; Westat technical assistance activities; federal verification procedures; the OSEP vision for children with disabilities; collection of exiting data; educational placement trends; trends in identification rates by race, ethnicityl, gender, and urbanicity; and OSEP processing of child count data for the distribution of funds. The proceedings document also includes descriptions of State special education data systems, data report forms for the 1990-91 school year, information on traumatic brain injury or head injuries, a form used in the Personnel Mapping Project, and the executive summary from "A Guide to Improving the National Education Data System." (JDD)