This annual report describes Illinois activities in the implementation of a statewide, comprehensive, coordinated system of early intervention services for eligible infants and toddlers and their families, as called for under the Individuals with Disabilities Education Act. The report provides: (1) discussion of progress in each of the 14 component areas of early intervention services, such as a comprehensive child find and referral system, a comprehensive system of personnel development, and a procedure for timely reimbursement of funds; (2) descriptions of 10 state agencies which directly or indirectly provide or administer early intervention services; (3) notes about interagency agreements and interagency coordination; (4) highlights of additional early intervention activities; and (5) a funding report. The report concludes with the text of Illinois' Early Intervention Services System Act. A list of Illinois' accomplishments includes, among others: adopted mission and philosophy statements; approved state policies for the required 14 components; funded services in 27 sites for eligible infants and toddlers; funded evaluation services and implementation of the statewide system of services in selected geographical locations; awarded a contract for public awareness; established 20 local coordinating councils; and awarded a contract to provide technical assistance for local council implementation. (JDD)