Cal. Bus. & Prof. Code § 13353

For the purposes of this chapter, “sale items” include any item that is represented or advertised to be lower in price from that which the item is normally offered for sale. A “sale item” includes but is not limited to, an item that is represented as “promotional,” “limited time offer,” a “manager special,” “discount taken at register,” or displayed with any other advertisements that offers or suggests a reduced price.