The present paper describes the past, current, and suggested future practices in the delivery of school psychological services at the high school level. Because high schools differ from elementary and middle schools (i.e., organizational structure, student characteristics and needs, etc.), school psychologists need to use different approaches in the delivery of services at the secondary level. It is proposed that school psychologists must become integrated into the total social system of the high school to be most effective. Methods for accomplishing this objective, including collaboration with other school personnel and utilization of community resources, are discussed.Requests for reprints should be sent to Richard J. Nagle,