16 CFR 238.2: Initial offer.

(a) No statement or illustration should be used in any advertisement which creates a false impression of the grade, quality, make, value, currency of model, size, color, usability, or origin of the product offered, or which may otherwise misrepresent the product in such a manner that later, on disclosure of the true facts, the purchaser may be switched from the advertised product to another.

(b) Even though the true facts are subsequently made known to the buyer, the law is violated if the first contact or interview is secured by deception. [Guide 2]