35 ILCS 200/18-195
Tax extensions made under Sections 18-45 and 18-105 are further limited by the provisions of this Law.
For those taxing districts that have levied in any previous levy year for any funds included in the aggregate extension, the county clerk shall extend a rate for the sum of these funds that is no greater than the limiting rate.
For those taxing districts that have never levied for any funds included in the aggregate extension, the county clerk shall extend an amount no greater than the amount approved by the voters in a referendum under Section 18-210.
If the county clerk is required to reduce the aggregate extension of a taxing district by provisions of this Law, the county clerk shall proportionally reduce the extension for each fund unless otherwise requested by the taxing district.
Upon written request of the corporate authority of a village, the county clerk shall calculate separate limiting rates for the library funds and for the aggregate of the other village funds in order to reduce the funds as may be required under provisions of this Law. In calculating the limiting rate for the library, the county clerk shall use only the part of the aggregate extension base applicable to the library, and for any rate increase or decrease factor under Section 18-230 the county clerk shall use only any new rate or rate increase applicable to the library funds and the part of the rate applicable to the library in determining factors under that Section. The county clerk shall calculate the limiting rate for all other village funds using only the part of the aggregate extension base not applicable to the library, and for any rate increase or decrease factor under Section 18-230 the county clerk shall use only any new rate or rate increase not applicable to the library funds and the part of the rate not applicable to the library in determining factors under that Section. If the county clerk is required to reduce the aggregate extension of the library portion of the levy, the county clerk shall proportionally reduce the extension for each library fund unless otherwise requested by the library board. If the county clerk is required to reduce the aggregate extension of the portion of the levy not applicable to the library, the county clerk shall proportionally reduce the extension for each fund not applicable to the library unless otherwise requested by the village.
Beginning with the 1998 levy year upon written direction of a county or township community mental health board, the county clerk shall calculate separate limiting rates for the community mental health funds and for the aggregate of the other county or township funds in order to reduce the funds as may be required under provisions of this Law. In calculating the limiting rate for the community mental health funds, the county clerk shall use only the part of the aggregate extension base applicable to the community mental health funds; and for any rate increase or decrease factor under Section 18-230, the county clerk shall use only any new rate or rate increase applicable to the community mental health funds and the part of the rate applicable to the community mental health board in determining factors under that Section. The county clerk shall calculate the limiting rate for all other county or township funds using only the part of the aggregate extension base not applicable to community mental health funds; and for any rate increase or decrease factor under Section 18-230, the county clerk shall use only any new rate or rate increase not applicable to the community mental health funds and the part of the rate not applicable to the community mental health board in determining factors under that Section. If the county clerk is required to reduce the aggregate extension of the community mental health board portion of the levy, the county clerk shall proportionally reduce the extension for each community mental health fund unless otherwise directed by the community mental health board. If the county clerk is required to reduce the aggregate extension of the portion of the levy not applicable to the community mental health board, the county clerk shall proportionally reduce the extension for each fund not applicable to the community mental health board unless otherwise directed by the county or township.
If the governmental unit is not subject to Section 1.1 or 1.2 of the Community Care for Persons with Developmental Disabilities Act, then: (i) beginning with the 2001 levy year for a county or township board before the effective date of this amendatory Act of the 100th General Assembly, upon written direction of a county or township board for care and treatment of persons with a developmental disability, the county clerk shall calculate separate limiting rates for the funds for persons with a developmental disability and for the aggregate of the other county or township funds in order to reduce the funds as may be required under provisions of this Law; and (ii) beginning with the levy year next following the effective date of this amendatory Act of the 100th General Assembly, upon written direction of the board of a governmental unit not covered under item (i) for care and treatment of persons with a developmental disability, the county clerk shall calculate separate limiting rates for the funds for persons with a developmental disability and for the aggregate of the other governmental unit funds in order to reduce the funds as may be required under provisions of this Law. If the governmental unit is subject to Section 1.1 or 1.2 of the Community Care for Persons with Developmental Disabilities Act, then, beginning with the levy year in which the voters approve the tax under Section 1.1 or 1.2 of that Act, the county clerk shall calculate separate limiting rates for the funds for persons with a developmental disability and for the aggregate of the other governmental unit funds in order to reduce the funds as may be required under provisions of this Law. In calculating the limiting rate for the funds for persons with a developmental disability, the county clerk shall use only the part of the aggregate extension base applicable to the funds for persons with a developmental disability; and for any rate increase or decrease factor under Section 18-230, the county clerk shall use only any new rate or rate increase applicable to the funds for persons with a developmental disability and the part of the rate applicable to the board for care and treatment of persons with a developmental disability in determining factors under that Section. The county clerk shall calculate the limiting rate for all other governmental unit funds using only the part of the aggregate extension base not applicable to funds for persons with a developmental disability; and for any rate increase or decrease factor under Section 18-230, the county clerk shall use only any new rate or rate increase not applicable to the funds for persons with a developmental disability and the part of the rate not applicable to the board for care and treatment of persons with a developmental disability in determining factors under that Section. If the county clerk is required to reduce the aggregate extension of the board for care and treatment of persons with a developmental disability portion of the levy, the county clerk shall proportionally reduce the extension for each fund for persons with a developmental disability unless otherwise directed by the board for care and treatment of persons with a developmental disability. If the county clerk is required to reduce the aggregate extension of the portion of the levy not applicable to the board for care and treatment of persons with a developmental disability, the county clerk shall proportionally reduce the extension for each fund not applicable to the board for care and treatment of persons with a developmental disability unless otherwise directed by the governmental unit .
As used in this Section, "governmental unit" has the meaning given to that term in Section 0.05 of the Community Care for Persons with Developmental Disabilities Act.
35 ILCS 200/18-195