American Civil Liberties Union
Center for Public Representation
American Association of People with Disabilities
Association of University Centers on Disabilities
Autistic Self Advocacy Network
Coelho Center for Disability Law, Policy and Innovation
Disability Rights Advocates
Disability Rights Washington
Disability Rights Education and Defense Fund
Judge David L. Bazelon Center for Mental Health Law
Little Lobbyists
Mental Health America
National Association of Councils on Developmental Disabilities
National Council on Independent Living
National Disability Rights Network
National Federation of the Blind
The Arc of United States
United Spinal Association
Read more about the brief here.