(a) A dealer may not sell or offer for sale motor fuel from a motor fuel pump supplied by a storage tank into which motor fuel, in a mixture in which at least one percent of the mixture measured by volume is ethanol or methanol, has been delivered within the 60-day period preceding the date of sale or offer of sale unless the dealer prominently displays on the pump from which the mixture is sold a sign that:
(1) is displayed on each side of the motor fuel pump on which the price of the motor fuel mixture sold from the pump is displayed;
(2) states "Contains Ethanol" or "Contains Methanol," as applicable;
(3) appears in contrasting colors with block letters at least one-half inch high and one-fourth inch wide; and
(4) is displayed in a clear, conspicuous, and prominent manner, visible to customers using either side of the pump.
(b) This section does not prohibit the posting of any other alcohol or additive information. Other alcohol or additive information and any relevant posting are subject to regulation by the department.