Abstract: A collaboration was formed among four Universal Design for Learning leaders from India and the US and resulted in the development of a 10-hour virtual “master course” for in-service teachers, rehabilitation professionals, and pre-service teacher educators in India and UAE that took place over two weeks in January 2021. “UDL Implementation from Access to Build to Internalize” focused on the preparation of educators to teach both about UDL and to teach using the UDL framework. The course included activities, examples, and conversations around how UDL can be brought into the teaching process in varied settings, including primary, secondary, and higher education levels. The overall goal of the course was to expand participant understanding of how to plan for instruction that effectively integrates UDL in the processes of teaching and learning. An evaluation study on course impacts utilized data collected through the Pre-Course and Post-Course surveys and analysis of course artifacts.