The present project is aimed at evaluating and describing the quality, uniformity and standards of vocational rehabilitation throughout the state agencies in the United States. The aim is to identify techniques, personnel, practices, programs and services that do and do not substantially contribute to effective vocational rehabilitation of specific types of clients. A second aim is to collect and store raw and processed data and information in a National Data Bank. The establishment of a National Data Bank will allow for the research use and re-use of data in vocational rehabilitation by research investigators at the Arkansas Rehabilitation Research and Training Center and throughout the nation. The project will have three phases: (1) questionnaires to provide information, examine differences in perceptions, and provide outcome data; (2) state procedures and policies to be compared; (3) an "in-depth" study of the rehabilitation process. The methodology of this latter phase is extensively described in the remainder of the booklet. (Author/NG)