Generally speaking, food-related industries such as food and beverage manufacturing, processing and sales require employees to hold health certificates. This involves restaurants, food processing plants, supermarket food departments, beverage stores and so on. In addition, barber shops, beauty salons, nail salons and other beauty industries often require employees to hold health certificates. There are also some ordinary retail stores, such as clothing stores, bookstores and daily necessities stores. Generally, employees are not required to hold health certificates.