The Youth Action Council on Transition (YouthACT) is a national initiative to get more youth with disabilities and their allies involved as leaders who partner with adults and organizations to improve opportunities for youth to succeed in life. "Transition" is the process and period of change that youth go through to become adults. Transition typically occurs between ages 12 and 25. During transition, youth need a variety of opportunities and supports to learn and develop skills and experience, set and achieve goals, and make personal decisions about school, work, and life. The aim of this brief is to increase efforts involving all youth to become active partners in making decisions that shape and affect their lives. [Co-written by the YouthACT team.]