All employees shall wear clean garments and shall keep their hands clean at all times while engaged in the handling of food, drink, utensils and equipment.
All female employees shall wear hairnets, and all male employees shall wear caps, while engaged in the preparation of food during working hours.
All employees who in any manner come in contact with or handle food shall, before beginning work, thoroughly wash their hands with soap and water.
No employee shall be permitted to smoke while on duty and engage in the preparation, handling, or serving of food.
D.C. Mun. Regs. tit. 14, r. 14-1116