The document presents the final report of the Assessment and Improvement of Related Services (AIRS) Project, an effort to assess the impact and effectiveness of special education related services in Hawaii. Each of the four project objectives focused on accomplishment of one of the evaluation types specified in the Context-Input-Process-Product (CIPP) model. Among seven areas of investigation were: (1) statistics on turnovers and vacancies in related service professional positions in Hawaii; (2) perspectives of administrators on related services; (3) perspectives of therapists who had left their positions; (4) and the extent to which speech/language therapy, occupational therapy, and physical therapy were provided as related services. Among findings were that a high rate of turnover and job vacancies exists; that problems exist in implementing guidelines and/or eligibility criteria; and that consultation was perceived to be an appropriate service delivery model. In addition, chapters provide information on: the historical background of the AIRS Project; statistics on position vacancies, speech/language therapy, occupational therapy, and physical therapy; the AIRS Futures Conference; views of administrators, service providers, and special education teachers; and an evaluation of the DISTAR language program. Among eight appendixes are interview and questionnaire forms used in the study.