14 Ill. Adm. Code 475.320
Advertising Limitations
Section 475
Section 475.320 Advertising
Limitations
It is an unfair or deceptive act
to fail to clearly and conspicuously disclose in an advertisement any
limitations, including, but not limited to the availability of a single vehicle
or a number of vehicles in stock, or period of time during which the offer is
in effect, or other applicable restrictions, to which the advertised price may
be subject.