Cal. Health and Safety Code § 111223

(a) (1) All manufacturers of Asian rice-based noodles shall place a label on the packaging of Asian rice-based noodles that indicates the date and time that the product first came out of hot holding at temperatures above 135 degrees Fahrenheit and includes a statement that the Asian rice-based noodles are perishable. (2) The product packaging shall only be labeled once. (3) Notwithstanding paragraphs (1) and (2), this section shall not apply to Asian rice-based noodles that have a pH of 4.6 or below, have a water activity of 0.85 or below, or have been determined by the department to be nonpotentially hazardous foods based on formulation and supporting laboratory documentation submitted to the department by the manufacturer. (b) All manufacturers of Korean rice cakes shall place a label issued by the Korean Rice Cake Association Corporation on the Korean rice cake that indicates the date of manufacture. The Korean rice cakes label shall include a statement that the rice cake must be consumed within one day of manufacture. (c) (1) All manufacturers of Vietnamese rice cakes shall place a label, designed by the Vietnamese Rice Cake Association, Inc., on the Vietnamese rice cake that indicates the date and time the cooking process was completed. The Vietnamese rice cakes label shall include a statement that the rice cake must be consumed within 24 hours of the date and time printed on the label. (2) Notwithstanding paragraph (1), this section does not apply to Vietnamese rice cakes that have been determined by the department to be nonpotentially hazardous foods based on formulation and supporting laboratory documentation submitted to the department by the manufacturer.