Presented are the findings of a study to identify, analyze, and explain activities and consequences in nine local education agencies (LEAs) in three states as they implemented the major provisions of P.L. 94-142, the Education for All Handicapped Children Act. Section I summarizes the background of the study and its major objectives. In Section II, the case study methodology is described. Section III addresses the nature and extent of the major consequences which arose during 2 school years of observation. Also identified are relevant changes in LEA organization, staff role behaviors, and attitudes which have occurred. Findings are reported for the following areas: childfind, assessment, placement, individualized education program, least restrictive environment, and parent involvement/due process. Among conclusions listed in a final section is that in all three states, the leadership role of the state education agency and the states' interpretations, policies, and procedures significantly influenced LEA procedures in implementing the provisions of the law. Appended materials include a conceptual model for assessing the implementation of P.L. 94-142, a summary of information gathering, and a description of the special education process. (SBH)