Type One: Physical disability. A physical disability is a physical impairment, disease, or loss, which is of a permanent nature, and which substantially limits physical ability or motor skills. The Secretary of State shall establish standards not inconsistent with this provision necessary to determine the presence of a physical disability.
Type Two: Developmental disability. Developmental disability means "developmental disability" as defined in Section 1-106 of the Mental Health and Developmental Disabilities Code . The Secretary of State shall establish standards not inconsistent with this provision necessary to determine the presence of a developmental disability.
Type Three: Visual disability. A visual disability is blindness, and the term "blindness" means central vision acuity of 20/200 or less in the better eye with the use of a correcting lens. An eye that is accompanied by a limitation in the fields of vision so that the widest diameter of the visual field subtends an angle no greater than 20 degrees shall be considered as having a central vision acuity of 20/200 or less. The Secretary of State shall establish standards not inconsistent with this Section necessary to determine the presence of a visual disability.
Type Four: Hearing disability. A hearing disability is a disability resulting in complete absence of hearing, or hearing that with sound enhancing or magnifying equipment is so impaired as to require the use of sensory input other than hearing as the principal means of receiving spoken language. The Secretary of State shall establish standards not inconsistent with this Section necessary to determine the presence of a hearing disability.
Type Five: Mental Disability. A mental disability is a significant impairment of an individual's cognitive, affective, or relational abilities that may require intervention and may be a recognized, medically diagnosable illness or disorder. The Secretary of State shall establish standards not inconsistent with this provision necessary to determine the presence of a mental disability.
15 ILCS 335/4A