Oregon Revised Statutes Trade Regulations and Practices § 646.881

(1) “Advertisement” means any oral, written or graphic statement or representation made in connection with the solicitation of business in any manner by a seller and includes, but is not limited to, statements and representations made in any newspaper or other publication, on radio or television, or printed in any catalog, circular, or any other sales literature or brochure, any billboard, or any banner or sign visible from a street or highway adjacent to the seller's place of business.

(2) “Price comparison” means the direct or indirect comparison in any advertisement whether or not expressed wholly or in part in dollars, cents, fractions or percentages of a seller's current price for a product with any other price or statement of value, whether or not such price is actually stated in the advertisement. “Price comparison” includes any price reduction claim or savings claim which a seller makes with respect to the seller's current price for any product.