Rivers in Japan are classified according to criteria set by the River Act (河川法, Kasen Hō), which was introduced in 1967.[1][2] Rivers are classified by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT).
- ^ "River Administration in Japan". Ministry of Land, Infrastructure, Transport and Tourism. Retrieved December 31, 2017.
- ^ "河川法" [River Law] (in Japanese). Ministry of Land, Infrastructure, Transport and Tourism. Archived from the original on June 23, 2016. Retrieved July 6, 2016.