Illinois Administrative Code
Title 14 - COMMERCE
Part 470 - RETAIL ADVERTISING
Subpart B - RETAIL PRICE COMPARISONS AND SAVINGS CLAIMS
Section 470.240 - Range of Savings or Price Comparison Claims

It is an unfair or deceptive act to state or imply that any products are being offered for sale at a range of prices or at a range of percentage or fractional discounts (for example: "Save from 10% to 50% Off") unless the highest price or lowest discount in the range is clearly and conspicuously disclosed in the advertisement and a reasonable number of these items in the advertisement are offered with at least the largest advertised discount. If at least 5% of the items in the advertisement are offered with at least the largest advertised discount it shall create a rebuttable presumption that a reasonable number were offered with at least the largest advertised discount.