California Code, Health and Safety Code - HSC § 114094.5

(a) A retail food facility shall not sell or offer for sale after the “use by” date, infant formula or baby food that is required to have this date on its packaging pursuant to the federal act, as defined in Section 109930, and federal regulations adopted pursuant to the federal act, including, but not limited to, Section 107.20 of Title 21 of the Code of Federal Regulations.

(b) Notwithstanding Section 114395, any retail food facility that violates this section is guilty of an infraction, punishable by a fine of not more than ten dollars ($10) per day for each item sold or offered for sale after the “use by” date. The fine shall be calculated based upon the number of days past the “use by” date that the product is either found being offered for sale, or if the product is sold, the date of sale as established by evidence of the proof of purchase, including, but not limited to, a sales receipt.

(c) An enforcement agency may assess administrative penalties on a retail food facility that violates this section in the amount of ten dollars ($10) per day for each item sold or offered for sale, in addition to other penalties authorized by law.

(d) For purposes of this section, the following definitions shall apply: