Does birtish citizen need work permission in Norway?

No, British citizens do not need a work permit to work in Norway because Norway is a member of the European Economic Area (EEA), which allows for the free movement of people and labor between its member states. This means that British citizens have the right to live and work in Norway without needing a work permit or specific authorization. However, British citizens who wish to work in Norway must still register with the Norwegian authorities and obtain a Norwegian national identification number (fødselsnummer) in order to work legally in the country.