The Japan Railways Group, more commonly known as JR Group (JRグループ, Jeiāru Gurūpu?), consists of seven for-profit companies that took over most of the assets and operations of the government-owned Japanese National Railways on April 1, 1987. Most of the liability of the JNR was assumed by the JNR Settlement Corporation.
The JR Group lies at the heart of Japan's railway network, operating a large proportion of intercity rail service (including the Shinkansen high-speed rail lines) and commuter rail service. A strong distinction is still made between JR and other private railway companies; for instance, the two are generally denoted differently on maps.