10 ILCS 5/4-6.3
The county clerk may establish a temporary place of registration for such times and at such locations within the county as the county clerk may select. Notice of the time and place of registration under this Section shall be published by the county clerk in a newspaper having a general circulation in the county not less than 3 nor more than 15 days before the holding of such registration.
Temporary places of registration shall be established so that the areas of concentration of population or use by the public are served, whether by facilities provided in places of private business or in public buildings or in mobile units. Areas which may be designated as temporary places of registration include, but are not limited to, facilities licensed or certified pursuant to the Nursing Home Care Act, the Specialized Mental Health Rehabilitation Act of 2013, the ID/DD Community Care Act, or the MC/DD Act, Soldiers' and Sailors' Homes, shopping centers, business districts, public buildings and county fairs.
Temporary places of registration shall be available to the public not less than 2 hours per year for each 1,000 population or fraction thereof in the county.
All temporary places of registration shall be manned by deputy county clerks or deputy registrars appointed pursuant to Section 4-6.2.
10 ILCS 5/4-6.3