I am Norwegian and wish to become a citizen of another country
If you are a Norwegian citizen and you become a citizen of another country after 1 January 2020, you are allowed to have dual citizenship, according to Norwegian law.
Norway will not take away your Norwegian citizenship if you become a citizen of another country. You do not need to submit an application to Norwegian authorities to keep your Norwegian citizenship.
You must still check whether the country you wish to become a citizen of, accepts that you keep your Norwegian citizenship. You must check this with the authorities in this country.