The specified local lines (特定地方交通線, Tokutei chihōkōtsū sen) were the railway lines specified by Japanese National Railways (JNR) under the 1980 JNR Reconstruction Act (国鉄改革法, Kokutetsu kaikaku hō) to be closed. All of 83 lines were closed and substituted by buses or transferred to other railway operators between 1983 and 1990.
Article 8 of the JNR Reconstruction Act (officially the Act on Special Measures concerning Reconstruction Promotion of Management of Japanese National Railways, Act No. 111 of 1980) directed JNR to specify unprofitable lines ("specified local lines") that should be replaced by bus operations based on certain criteria set by a Cabinet Order.
JNR selected 83 lines in three phases.
Operators in parentheses succeeded the railway operation of the lines. Lines not followed by parentheses were substituted by buses.
Shiranuka LineKuji Line (Sanriku Railway)Miyako Line (Sanriku Railway)Sakari Line (Sanriku Railway)Nitchū LineAkatani LineUonuma LineShimizukō LineKamioka Line (Kamioka Railway)Tarumi Line (Tarumi Railway)Kuroishi Line (Kōnan Railway)Takasago LineMiyanoharu LineTsuma LineKomatsushima LineAioi LineShokotsu LineManji LineHōjō Line (Hōjō Railway)Miki Line (Miki Railway)Kurayoshi LineKatsuki LineKatsuta LineSoeda LineMuroki LineYabe LineIwanai LineKōhin North LineŌhata Line (Shimokita Kōtsū)Kōhin South LineBikō LineYashima Line (Yuri Kōgen Railway)Akechi Line (Akechi Railway)Amagi Line (Amagi Railway)Takamori Line (Minamiaso Railway)Kakunodate Line (Akita Nairiku Jūkan Railway)Shigaraki Line (Shigaraki Kohgen Railway)Wakasa Line (Wakasa Railway)Kihara Line (Isumi Railway)Urushio LineIburi LineTomiuchi LineAniai Line (Akita Nairiku Jūkan Railway)Etsumi South Line (Nagaragawa Railway)Miyanojō LineHiroo LineŌsumi LineFutamata Line (Tenryū Hamanako Railroad)Setana LineYūmō LineShihoro LineIse Line (Ise Railway)Saga LineShibushi LineHaboro LineHoronai LineMatsumae LineUtashinai LineShibetsu LineTempoku LineNayoro Main LineChihoku Line (Hokkaidō Chihoku Kōgen Railway)Aizu Line (Aizu Railway)Mōka Line (Mōka Railway)Ashio Line (Watarase Keikoku Railway)Gannichi Line (Nishikigawa Railway)Matsuura Line (Matsuura Railway)Kamiyamada LineTakachiho Line (Takachiho Railway)Nagai Line (Yamagata Railway)Okata Line (Aichi Loop Railway)Noto Line (Noto Railway)Miyazu Line (Kitakinki Tango Railway)Kajiya LineTaisha LineNakamura Line (Tosa Kuroshio Railway)Ita Line (Heisei Chikuhō Railway)Itoda Line (Heisei Chikuhō Railway)Tagawa Line (Heisei Chikuhō Railway)Yunomae Line (Kumagawa Railway)Miyada Line