Norske tog Class 92 is a class of 15 diesel multiple units built by Duewag for the Norwegian State Railways (NSB). The two-car trains were delivered in 1984 and 1985, and were put into service on the Røros Line and southern part of the Nordland Line—which later became the Trøndelag Commuter Rail. Later, they also entered service on the Meråker Line as part of the international Mittnabotåget service. Previously, the trains were also used on the Solør Line, further north on the Nordland Line and on the now electrified Arendal Line. In 2000, a unit was involved in the Åsta accident; which killed 19 people. The trains were refurbished in 2005 and 2006, and NSB plans to replace them by around 2019. Each twin unit seats 168 people, is 49.45 meters long and weighs 92 tonnes. The front car is powered with two electric motors, giving a power output of 714 kilowatts (957 hp) and a maximum speed of 140 kilometers per hour (87 mph).

Vygruppen, branded as Vy, formerly the Norwegian State Railways, is a government-owned railway company which operates most passenger train services and many bus services in Norway. The company is owned by the Norwegian Ministry of Transport. Its sub-brands include Vy Buss coach services, CargoNet freight trains and the Swedish train transport company Tågkompaniet. In 2009, NSB carried 52 million train passengers and 104 million bus passengers. On 24 April 2019, passenger train and bus services were rebranded as Vy.