The of Japan provides for the designation of three types of protected area: and , by the Minister of the Environment, and , by Prefectural Governors.
As of 31 March 2015, five Wilderness Areas have been designated, with a total area of 56.31 km<sup>2</sup>.
As of 31 March 2015, ten Nature Conservation Areas have been designated, with a total area of 225.42 km<sup>2</sup>.
As of 31 March 2015, five hundred and forty-four Prefectural Nature Conservation Areas have been designated, with a total area of 774.08 km<sup>2</sup>.