The National Down Syndrome Society (NDSS) is a non-profit organization dedicated to being the national advocate for the value, acceptance, and inclusion of people with Down syndrome. We provide resources and support to individuals with Down syndrome, their families, and the professionals who serve them. We
From Wikipedia
The National Down Syndrome Society (NDSS) is an American organization that offers support to people with Down syndrome, their families, friends, teachers, and coworkers, and educates the general public about Down syndrome. The mission of the NDSS is to be the leading human rights organization for all individuals with Down syndrome.