305 ILCS 5/12-3
As provided in Article VI, local governmental units shall provide funds for and administer the programs provided in that Article subject, where so provided, to the supervision of the Illinois Department. Local governmental units shall also provide the social services and utilize the rehabilitative facilities authorized in Article IX for persons served through Article VI, and shall discharge such other duties as may be required by this Code or other laws of this State.
In counties not under township organization, the county shall provide funds for and administer such programs.
In counties under township organization (including any such counties in which the governing authority is a board of commissioners) the various towns other than those towns lying entirely within the corporate limits of any city, village or incorporated town having a population of more than 500,000 inhabitants shall provide funds for and administer such programs.
Cities, villages, and incorporated towns having a population of more than 500,000 inhabitants shall provide funds for public aid purposes under Article VI but the Department of Human Services shall administer the program for such municipality. For the fiscal year beginning July 1, 2003, however, the municipality shall decrease by $5,000,000 the amount of funds it provides for public aid purposes under Article VI. For each fiscal year thereafter, the municipality shall decrease the amount of funds it provides for public aid purposes under Article VI in that fiscal year by an additional amount equal to (i) $5,000,000 or (ii) the amount provided by the municipality in the preceding fiscal year, whichever is less, until the municipality does not provide any funds for public aid purposes under Article VI.
Incorporated towns which have superseded civil townships shall provide funds for and administer the public aid program provided by Article VI.
In counties of less than 3 million population having a County Veterans Assistance Commission in which there has been levied a tax as authorized by Section 5-2006 of the Counties Code for the purpose of providing assistance to military veterans and their families, the County Veterans Assistance Commission shall administer the programs provided by Article VI for such military veterans and their families as seek aid through the County Veterans Assistance Commission.
305 ILCS 5/12-3