305 ILCS 5/11-4
An application for public assistance shall be deemed an application for all such benefits to which any person may be entitled except to the extent that the applicant expressly declines in writing to apply for particular benefits. The Illinois Department shall provide information in writing about all benefits provided under this Code to any person seeking public assistance. The Illinois Department shall also provide information in writing and orally to all applicants about an election to have financial aid deposited directly in a recipient's savings account or checking account or in any electronic benefits account or accounts as provided in Section 11-3.1, to the extent that those elections are actually available, including information on any programs administered by the State Treasurer to facilitate or encourage the distribution of financial aid by direct deposit or electronic benefits transfer. The Illinois Department shall determine the applicant's eligibility for cash assistance, medical assistance and food stamps unless the applicant expressly declines in writing to apply for particular benefits. The Illinois Department shall adopt policies and procedures to facilitate timely changes between programs that result from changes in categorical eligibility factors.
The County departments, local governmental units and the Illinois Department shall assist applicants for public assistance to properly complete their applications. Such assistance shall include, but not be limited to, assistance in securing evidence in support of their eligibility.
305 ILCS 5/11-4