(775 ILCS 5/) Illinois Human Rights Act.
(775 ILCS 5/1?103) (from Ch. 68, par. 1?103)
Sec. 1?103. General Definitions. When used in this Act, unless the context requires otherwise, the term:
[...]
(I) Disability. "Disability" means a determinable physical or mental characteristic of a person, including, but not limited to, a determinable physical characteristic which necessitates the person's use of a guide, hearing or support dog, the history of such characteristic, or the perception of such characteristic by the person complained against, which may result from disease, injury, congenital condition of birth or functional disorder and which characteristic:
(1) For purposes of Article 2 is unrelated to the
person's ability to perform the duties of a particular job or position and, pursuant to Section 2?104 of this Act, a person's illegal use of drugs or alcohol is not a disability;
(2) For purposes of Article 3, is unrelated to the
person's ability to acquire, rent or maintain a housing accommodation;
(3) For purposes of Article 4, is unrelated to a
person's ability to repay;
(4) For purposes of Article 5, is unrelated to a
person's ability to utilize and benefit from a place of public accommodation.