Øst-Telemark Automobilselskap AS (ØTA) was a bus company based in Notodden, Norway. It was taken over by NSB Biltrafikk on 1 May 1998, and was renamed Nettbuss Telemark AS in 2000. In 2005 it was merged into Nettbuss Drammen.
On 4 August 1997, it launched the TIMEkspressen hourly coach service from Notodden to Oslo. Nettbuss later made this a national brand for its hourly intercity coach services. In 1998, the company's owners, Gjermund Jamtveit and Halvor Grene, also started the train company TIMEtoget, that attempted to operate the Bratsberg Line on a similar, hourly concept.