The Center for Special Education Finance (CSEF)--housed in the American Institutes for Research (AIR) and one of several research centers funded by the Office of Special Education Programs (OSEP), U.S. Department of Education--provides policymakers and administrators at all governmental levels with data, analyses, expertise, and opportunities to share information about special education finance issues. One CSEF activity is the collection and dissemination of information on state systems of special education finance. In 1999-2000, CSEF collaborated with the National Association of State Directors of Special Education (NASDSE) to survey state special education administrators. The survey was designed to obtain two types of information: (1) Descriptions of the mechanisms used by states to fund special education services for school-age children with disabilities, and (2) State-level estimates of the total amounts of spending on these services from state, local, and federal funds from 1994-5 through 1998-99. This document summarizes results from the CSEF/NASDSE survey, describing state systems for financing special education services for school-age children with disabilities during the 1999-2000 school year. The survey also collected special education revenue and expenditure data for the years 1994-95 to 1998-99 (which are reported in a separate document). Survey data from all 50 states are included in this report, with all but four states (Georgia, New Hampshire, South Carolina, and South Dakota) providing updated information. Chapter II of this report contains an abstract of each state's special education funding mechanism for the 1999-2000 school year. Appended are: (1) Special Education Funding Contacts; (2) Conducted and Proposed Studies; and (3) Beliefs Regarding Impact of IDEA. (Contains 13 exhibits and 7 footnotes.) [For Part II, see ED522070.]