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20 ILCS 4010/2002

    (20 ILCS 4010/2002) (from Ch. 91 1/2, par. 1952)
    Sec. 2002. Definitions. As used in this Article, unless the context requires otherwise:
    (a) "Council" means the Illinois Council on Developmental Disabilities.
    (b) "Chairperson" means the chairperson of the Illinois Council on Developmental Disabilities.
    (c) "Director" means the director of the Illinois Council on Developmental Disabilities.
    (d) "Developmental disability" means, in general, a severe chronic disability of an individual 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 22;
        (3) is likely to continue indefinitely;
        (4) results in substantial functional limitations in
3 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 sufficiency; and
        (5) reflects the person's need for a combination and
sequence of special interdisciplinary or generic services care, individualized supports, or other forms of assistance that are of life long or extended duration and are individually planned and coordinated.
    When applied to infants and young children, an individual may be considered to have a "developmental disability" if the individual from birth to age 9, inclusive, has (i) a substantial developmental delay or specific congenital or acquired conditions and (ii) does not meet 3 or more of the criteria described in paragraphs (1) through (5) but who, without services and support, has a high probability of meeting those criteria later in life.
(Source: P.A. 91-798, eff. 7-9-00.)