Illinois General Assembly

  Bills & Resolutions  
  Compiled Statutes  
  Public Acts  
  Legislative Reports  
  IL Constitution  
  Legislative Guide  
  Legislative Glossary  

 Search By Number
 (example: HB0001)
Search Tips

Search By Keyword

Illinois Compiled Statutes

 ILCS Listing   Public Acts  Search   Guide   Disclaimer

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.

755 ILCS 5/11a-1

    (755 ILCS 5/11a-1) (from Ch. 110 1/2, par. 11a-1)
    (Text of Section before amendment by P.A. 102-72 and 102-109)
    Sec. 11a-1. Developmental disability defined.) "Developmental disability" means a disability which is attributable to: (a) an intellectual disability, cerebral palsy, epilepsy or autism; or to (b) any other condition which results in impairment similar to that caused by an intellectual disability and which requires services similar to those required by persons with intellectual disabilities. Such disability must originate before the age of 18 years, be expected to continue indefinitely, and constitute a substantial disability.
(Source: P.A. 99-143, eff. 7-27-15.)
 
    (Text of Section after amendment by P.A. 102-72 and 102-109)
    Sec. 11a-1. "Developmental disability", "intellectual disability", and "related condition" defined.
    "Developmental disability" means a disability that is attributable to an intellectual disability or a related condition.
    "Intellectual disability" means significantly subaverage general intellectual functioning existing concurrently with deficits in adaptive behavior and manifested before the age of 22 years.
    "Related condition" means a condition that:
        (1) is attributable to cerebral palsy, epilepsy, or
    
any other condition, other than mental illness, found to be closely related to an intellectual disability because that condition results in impairment of general intellectual functioning or adaptive behavior similar to that of individuals with an intellectual disability, and requires treatment or services similar to those required for those individuals. For purposes of this Act, autism is considered a related condition;
        (2) is manifested before the individual reaches age
    
22;
        (3) is likely to continue indefinitely; and
        (4) results in substantial functional limitation in 3
    
or more of the following areas of major life activity: self-care, language, learning, mobility, self-direction, and capacity for independent living.
(Source: P.A. 102-72, eff. 1-1-22; 102-109, eff. 1-1-22.)