14 Ill. Adm. Code 470.230
Comparison to Future Prices
Section 470
Section 470.230 Comparison
to Future Prices
It is an unfair or deceptive
practice for a seller to make an introductory offer or to compare its current
price for a product with the price at which the product will be offered in the
future (for example: "Introductory Sale, Now $69, will be $90"),
unless:
a) the future price takes effect within a reasonable time after
the introductory offer or price comparison is published; and
b) the product's future price is, subsequent to the end of an
introductory sale, properly established as the seller's former (regular) price
in accordance with Section 470.220 of this Part.