California Code, Health and Safety Code - HSC § 113961

(a) Food employees shall minimize bare hand and arm contact with nonprepackaged food that is in a ready-to-eat form.

(b) Food employees shall use nonlatex utensils, including scoops, forks, tongs, paper wrappers, gloves, or other implements, to assemble ready-to-eat food or to place ready-to-eat food on tableware or in other containers. However, food employees may assemble or place on tableware or in other containers ready-to-eat food in an approved food preparation area without using utensils if hands are cleaned in accordance with Section 113953.3.

(c) Food that has been served to the consumer and then wrapped or prepackaged at the direction of the consumer shall be handled only with utensils. These utensils shall be properly sanitized before reuse.