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About Us

Since 1876, the American Association on Intellectual and Developmental Disabilities (AAIDD) has been providing worldwide leadership in the field of intellectual and developmental disabilities. We're a powerful community of leaders with a strong voice and important mission.

AAIDD, (formerly AAMR -- American Association on Mental Retardation) is the oldest and largest interdisciplinary organization of professionals and others concerned about intellectual and developmental disabilities.

We're tireless promoters of progressive policies, sound research, effective practices and universal human rights for people with intellectual and developmental disabilities.

With membership over 5,000 strong in the United States and in 55 countries worldwide, AAIDD is the leader in advocating quality of life and rights for those with intellectual disabilities. Our top-tier member benefits such as professional training, publications and supports are created by and for professionals who support people with intellectual and developmental disabilities.

As a member, you'll get the professional edge and network you need -- AAIDD members are an impressive group of dedicated professionals, boasting advanced degrees and extensive field experience.