The Arc is the world’s largest nonprofit, community-based organization advocating for and serving people with intellectual and developmental disabilities (I/DD), including Down syndrome, Autism Spectrum Disorder, Fetal Alcohol Spectrum Disorders, cerebral palsy and other diagnoses. The Arc has a network of about 665 chapters across the country promoting and protecting the human rights of people with I/DD and actively supporting their full inclusion and participation in the community throughout their lifetimes. In addition to individual advocacy and public policy efforts at the local, state and national level, The Arc is the largest provider of services and supports for people with I/DD and their families.