Cal. Bus. & Prof. Code § 17531
It is unlawful for any person, firm, or corporation, in any newspaper, magazine, circular, form letter or any open publication, published, distributed, or circulated in this state, including over the Internet, or on any billboard, card, label, or other advertising medium, or by means of any other advertising device, to advertise, call attention to or give publicity to the sale of any merchandise, which merchandise is secondhand or used merchandise, or which merchandise is defective in any manner, or which merchandise consists of articles or units or parts known as "seconds," or blemished merchandise, or which merchandise has been rejected by the manufacturer thereof as not first class, unless there is conspicuously displayed directly in connection with the name and description of that merchandise and each specified article, unit, or part thereof, a direct and unequivocal statement, phrase, or word which will clearly indicate that the merchandise or each article, unit, or part thereof so advertised is secondhand, used, defective, or consists of "seconds" or is blemished merchandise, or has been rejected by the manufacturer thereof, as the case may be. Any violation of this section is a misdemeanor punishable by imprisonment in the county jail not exceeding six months, or by a fine not exceeding two thousand five hundred dollars ($2,500), or by both that imprisonment and fine.
Ca. Bus. and Prof'l. Code § 17531