The types of work codes are indicated by English capital letters A to F respectively:
A: People who directly serve customers in public places B: People who are engaged in the production and operation of drinking water C: People who are directly engaged in the production of cosmetics D: People who are engaged in the fields of food circulation and consumption (including the production and processing of health food and the production of box lunch) E: People who are engaged in food production and processing enterprises F: Others (referring to those who are not explicitly engaged in the above work).
Legal basis: Article 45 of the Food Safety Law of People's Republic of China (PRC), food producers and business operators shall establish and implement the health management system for employees. Persons suffering from diseases that hinder food safety as stipulated by the administrative department of health of the State Council shall not engage in direct contact with imported food. Food production and marketing personnel engaged in direct contact with imported food shall undergo annual health examination and obtain health certificates before taking up their posts.