If you are a citizen of an EU / EEA / EFTA country, you no longer need to apply for a residence permit, but you must make a registration. You can make a preliminary registration online.
The Norwegian Directorate of Immigration, PB 8108 Dep, 0032 Oslo. Phone: (+ 47) 23 35 15 00, Editor in chief: Bente E. Engesland, Web editor: Helen K. Åsli. This page validates according to W3C