This qualitative case study explored how secondary special education teachers and transition specialists perceived their collaborative efforts when transitioning students with Autism Spectrum Disorder (ASD) from secondary to higher education. The theory of transition established the platform for this study. Two of the theoretical principles of situation and support were used as a lens to determine the collaborative perceptions between these two educator groups. The research questions specified educator perceptions of collaboration throughout the transition process and building collaborative relationships. The sample consisted of seven secondary special education teachers and seven transition specialists within the State of Arizona. Data collection sources the secondary transition plan document, semistructured individual interviews and two focus group sessions. Data coding procedures determined specific patterns that emerged in the analysis. A total of seven themes emerged: Collaboration ongoing, team effort, unrealistic expectations affect transition, attitude of specialists affecting student success, trust is vital to building relationships, lack of knowledge in preparing students during transition, and the importance of parental involvement throughout the transition process. The results that provided the greatest influence to the collaborative process included parental involvement and relationships, trust building between educators, continued training, provision of resources, and the development of the transition plan. The implications of this study suggested that educational organizations provide opportunities for these specialists to attend trainings for continued professional development. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]