It represents different types of residence.

Hukou type refers to the household registration classification of Chinese citizens. According to different household registration classifications, a person will be classified into Class A, Class B or Class C household registration. Type A household registration refers to permanent household registration, type B household registration refers to temporary household registration, and type C household registration refers to mobile household registration.

Class A household registration refers to the household registration of residents who permanently reside in the region or city. This type of household registration usually provides stable living, is supported by various policies and benefits, and enjoys more rights in terms of house purchase, children's education, social security, etc.