This volume of the National Longitudinal Transition Study of Special Education Students (NLTS) offers statistical data relating to 744 students (ages 13-21) with concomitant impairments, the combination of which causes such severe educational problems that they cannot be accommodated in special education programs solely for one of the impairments (does not include deaf/blind). The study involved a survey of parents/guardians, examination of school records, and a survey of school programs. The 43 tables describe: youths' individual and household characteristics (demographic characteristics, self-care skills, functional skills, assistive devices, parental expectations for futures of youth); characteristics of students' school and educational programs (enrollment, staffing, policies, coordination, transition planning, educational placements, course-taking); programs available (vocational education, vocational assessment/counseling, work adjustment training); services received (vocational services, counseling, occupational therapy, tutors, readers, interpreters, speech/language therapy, physical assistance, transportation assistance); and youth outcomes (educational achievements, school completion, independence, social experiences, postsecondary education, employment.) The tables present data by type of community, gender, age, school status, household income, ethnicity, and head of household education. The volume also outlines the purposes of the study and the research methodology. Appendices provide information on interpreting variables and present data tables relating to specific subgroups. Includes two references. (JDD)