Railway Construction Act
The Railway Construction Act was promulgated by the Diet of Japan on June 21, 1892, and designated government support for a network of thirty-three railway lines covering most of Japan, with the exception of Hokkaidō. On April 11, 1922, the Diet amended the law to add an additional network of regional and local routes. Today, these lines form the backbone of the national railway network, JR.Lines designated by the Act of 1892
The lines in following list don't appear the act, because operated already or soon.