Implementation science provides guidance on adapting existing evidence based practices (EBPs) by incorporating implementation concerns from the start. Focus-group methodology was used to understand barriers and facilitators of transition planning and implementation for students with autism spectrum disorder (ASD) who often experience disparate postsecondary outcomes compared to peers. Results were used to modify an evidence-based consultation intervention originally applied to young students with ASD, called the Collaborative Model for Promoting Competence and Success (COMPASS; Ruble, Dalrymple, & McGrew, 2012). Because consultation is a multilevel EBP, two existing implementation science frameworks were used to guide adaptation: the Framework for Evidence Based Implementation and Intervention Practices (Dunst & Trivette, 2012) and the Consolidated Framework for Implementation Research (Damschroder et al., 2009). The purpose of this article is to describe a process of adaptation of COMPASS that may be useful for other implementation science studies of consultation interventions, teacher acceptability, feasibility, and burden, and parent/student satisfaction with the adapted intervention.