- U.S. Department of Health & Human Serviceswww.hhs.gov
- National Council on Disabilitywww.ncd.gov
- Disability.govwww.disability.gov
- Developmental Disabilities Resource Centerwww.ddrcco.com
- Council on Developmental Disabilities (CDD)www.tn.gov
- Intellectual & Developmental Disabilities (DIDD)www.tn.gov
- American Association on Intellectual and Developmental Disabilitieswww.aaidd.org
