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Division of Developmental Disabilities
What is a Developmental Disability?

A developmental disability is defined in state statute (SDCL 27B-1-18), as any severe, chronic disability of a person that:
  1. Is attributable to a mental or physical impairment or combination of mental and physical impairments;
  2. Is manifested before the person attains age twenty-two;
  3. Is likely to continue indefinitely;
  4. Results in substantial functional limitations in three or more of the following areas of major life activity: self-care, receptive and expressive language, learning, mobility, self-direction, capacity for independent living, and economic self-sufficiency; and
  5. Reflects the person's need for an array of generic services, met through a system of individualized planning and supports over an extended time, including those of a life-long duration.
The Federal Developmental Disabilities Act (Public Law 101-496) defines a developmental disability as a severe, chronic disability of a person five years of age or older which...
  1. Is attributable to a mental or physical impairment or combination of mental and physical impairments;
  2. Is manifested before the person attains age twenty-two;
  3. Is likely to continue indefinitely;
  4. Results in substantial functional limitations in three or more of the following areas of major life activity:
    • self-care;
    • receptive and expressive language;
    • learning;
    • mobility,
    • self-direction;
    • capacity for independent living; and
    • economic self-sufficiency; and
  5. Reflects the person's need for a combination and sequence of special, interdisciplinary, or generic care, treatment, or other services which are lifelong or extended duration and are individually planned and coordinated; except that such term when applied to infants and young children means individuals from birth to age five inclusive, who have a substantial developmental delay or specific congenital or acquired conditions with a high probability of resulting in developmental disabilities if services are not provided.

Are you interested in being an advocate or volunteer for a person with a developmental disability?

There are a number of participants receiving services from Community Support Providers who are in need of a person who wants to volunteer and advocate for them. There is a need for people who are willing to be a mentor, a friend and who will take the time to visit and become involved in the life of a person with a developmental disability.

For more information, contact a Community Support Provider in your area or the Division of Developmental Disabilities.