Susan L. Vaughn is the Director of Public Policy for the National Association of State Head Injury Administrators and consults with the Brain Injury Association of America on state policy issues.

She retired from the State of Missouri in 2002, after working nearly 30 years in the field of disabilities and public policy. She served as the first director of the Missouri Head Injury Advisory Council, a position she held for17 years. She founded National Association of State Head Injury Administrators in 1990, and served as its first president.