A jūminhyō(住民票) is a registry of current residential addresses maintained by local governments in Japan. Japanese law requires each citizen to report his or her current address to their local authority, which compiles the information for tax, national health insurance and census purposes. The jūminhyō is different from a koseki, which is the formal record of a family's history. When proof of residence is required, such as for opening a bank account or registering children at a local school district, one needs to obtain a copy of this record from the local government office.