This report was prepared as part of a 5-year study of the states' implementation of federal legislation regarding infants and toddlers (the Education of the Handicapped Act, Amendments 1986). In spring of 1988, a survey was made of key state personnel to assess current implementation status along a number of critical dimensions: definition and eligibility criteria, finance, family plans, interagency service coordination, and data systems. The survey found that 25 states had definitions for "developmentally delayed," while 20 states were considering or revising their definitions. From 4 to 15 different financial sources were being used to support programs for infants and toddlers; 14 states reported no coordination of funds, while 28 states reported efforts to coordinate sources. Nineteen states were using a former or existing interagency planning group to serve as the Interagency Coordinating Council, while 24 states formed new councils. Only five states reported having an Individual Family Service Plan (IFSP) meeting the requirements of the law, while 18 states were developing IFSP formats and 16 states were developing IFSP guidelines and policies. Forty-four states indicated that they had data available for at least one of the four required annual report categories. (Author/JDD)