The transition to adulthood can be difficult for youth, particularly those who have disabilities severe enough that they receive Supplemental Security Income (SSI), Social Security Disability Insurance (DI), or other disability program benefits. Besides the issues facing all transition-age youth, young people with disabilities face a host of special challenges: health problems, social isolation, service needs, and lack of supports. These challenges complicate their planning for the future and often lead to poor educational and employment outcomes, long-term dependency, and a lifetime of poverty. In this policy brief, the authors highlight the importance of improving transition policy for youth with disabilities, review lessons from recent research, and consider transformative policy changes and why and how such changes might be tested. (Contains 4 footnotes.).