A city (市 shi?) is a local administrative unit in Japan. Cities are ranked on the same level as towns (町 machi?) and villages (村 mura?), with the difference that they are not a component of districts (郡 gun?). Like other contemporary administrative units, they are defined by the Local Autonomy Law of 1947.
Article 8 of the Local Autonomy Law sets the following conditions for a municipality to be designated as a city:
The designation is approved by the prefectural governor and the Minister for Internal Affairs.