A hùkǒu () or hùjí () refers to residency permits (household registration) issued in mainland China (by the People's Republic of China and Taiwan (by the Republic of China). A household registration record officially identifies a person as a resident of an area and includes identifying information such the name of the person, his date of birth, the names of his parents, and name of his spouse, if married. A hukou can also refer to a family register in many contexts since the household registration record (戶籍謄本, hùjíténgběn) is issued per family, and usually maintains includes the births, deaths, marriages, divorces, and moves, of all members in the family. A similar household registration system exists within the public administration structures of Japan (koseki), Vietnam (ho khau) and both North and South Korea (Hojok). In South Korea the (Hojok) system was repealed in 2005
Under the command economy in the PRC before the 1980s, a residency permit was required for any employment and to receive food and other essential consumer products. After Chinese market reforms, it became possible for some to unofficially migrate and get a job without a valid permit. Economic reforms also created pressures to encourage migration from the interior to the coast as well as provided incentives for officials not to enforce migration regulations. Until 2003, administration regulations known as custody and repatriation authorized police to detain and return persons to their permanent residency location, but this system was abolished after the public outcry due to the death of Sun Zhigang.
Reforming the residency system has been a very controversial topic within the PRC. Although the current system is widely regarded within the PRC as unfair and inhumane, the main problem with liberalization is that there are fears that it would result in a massive influx to the cities which would stress already strained government services beyond the breaking point, and result in further economic loss to rural areas.
Hukou is not employed in the special administrative regions of Hong Kong and Macau, though identification cards are mandatory for residents there.
While all ROC nationals can apply for a ROC passport, proper household registration is required for obtaining a ROC National ID card, which is often used as proof of citizenship, such as in national elections, and an ID number is needed to open bank accounts. Unlike in mainland China, residency can be easily changed with the local authorities and household registration does not serve as a tool to limit a resident's movements within Taiwan.
Law of the People's Republic of China | Mainland China | family register