Article 5. Personal Cleanliness of California Health And Safety Code >> Division 104. >> Part 7. >> Chapter 3. >> Article 5.

No employee shall commit any act that may cause the contamination or adulteration of food, food-contact surfaces, or utensils.

Food employees shall keep their fingernails trimmed, filed, and maintained so the edges and surfaces are cleanable and not rough.

(a) Except as specified in subdivision (b), all food employees preparing, serving, or handling food or utensils shall wear hair restraints, such as hats, hair coverings, or nets, which are designed and worn to effectively keep their hair from contacting nonprepackaged food, clean equipment, utensils, linens, and unwrapped single-use articles.
  (b) This section does not apply to food employees, such as counter staff who only serve beverages and wrapped or prepackaged foods, hostesses, and wait staff, if they present a minimal risk of contaminating nonprepackaged food, clean equipment, utensils, linens, and unwrapped single-use articles.

Food employees shall wear clean outer clothing to prevent contamination of food, equipment, utensils, linens, and single-use articles.