In 1987, a graduate-level program to train transition service specialists was instituted at California State University at Long Beach. The program, known as the Collaborative Transition Services Training Program (CTSTP), is an 18-semester unit program organized into three phases: a 3-unit course on transition programming for youth and adults with disabilities, a 12-unit core of interdisciplinary coursework, and a 3-unit practicum in applied settings. Trainees follow individualized competency-based participant training plans that are typically completed on a part-time basis over 3 successive semesters. The CTSTP has been evaluated by various means, including profile data of project participants, pre- and postprogram completion transition competency self-ratings by trainees, external review by independent investigators, and follow-up studies of program graduates' career outcomes/changes. Since 1987, 82 trainees from a broad mix of fields (special, vocational, and adult education) have participated in the program. According to the evaluation measures, the CTSTP has helped participants achieve positive career outcomes, improve their job performance, increase their degree of networking and involvement with other transition personnel, and expand services to additional client groups. The CTSTP has also been positively received by employers of its graduates. (Contains 20 references.) (MN)