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Illinois Compiled Statutes

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Information maintained by the Legislative Reference Bureau
Updating the database of the Illinois Compiled Statutes (ILCS) is an ongoing process. Recent laws may not yet be included in the ILCS database, but they are found on this site as Public Acts soon after they become law. For information concerning the relationship between statutes and Public Acts, refer to the Guide.

Because the statute database is maintained primarily for legislative drafting purposes, statutory changes are sometimes included in the statute database before they take effect. If the source note at the end of a Section of the statutes includes a Public Act that has not yet taken effect, the version of the law that is currently in effect may have already been removed from the database and you should refer to that Public Act to see the changes made to the current law.

405 ILCS 5/1-116

    (405 ILCS 5/1-116) (from Ch. 91 1/2, par. 1-116)
    (Text of Section before amendment by P.A. 102-972)
    Sec. 1-116. "Intellectual disability" means significantly subaverage general intellectual functioning which exists concurrently with impairment in adaptive behavior and which originates before the age of 18 years.
(Source: P.A. 97-227, eff. 1-1-12.)
 
    (Text of Section after amendment by P.A. 102-972)
    Sec. 1-116. Intellectual disability. "Intellectual disability" means a disorder with onset during the developmental period (before the individual reaches age 22), that includes both intellectual and adaptive deficits in conceptual, social and practical domains. The following 3 criteria must be met: (1) deficits in intellectual functions such as reasoning, problem solving, planning, abstract thinking, judgment, academic learning, and learning from experience confirmed by both clinical assessment and individualized, standardized intelligence testing (generally indicated with an IQ score of about 70 or below), (2) deficits in adaptive functioning that result in failure to meet developmental and sociocultural standards for personal independence and social responsibility. Without ongoing support, the adaptive deficits limit functioning in one or more activities of daily life, such as communication, social participation, and independent living, across multiple environments, such as home, school, work, and community, and (3) onset of intellectual and adaptive deficits during the developmental period. This definition does not supersede the "intellectual disability" definition in Section 1.1 of the Firearm Owners Identification Card Act which is required to be applied under that Act for the purpose of mandatory reporting.
(Source: P.A. 102-972, eff. 1-1-23.)