If you reached the age of 22 before 1 January 1925, then you have lost your Norwegian citizenship if you moved from Norway for reasons other than the following:
You do not lose your citizenship, however, if you:
If you moved because you, your father or your husband was employed under Norwegian foreign services abroad, acceptable documentation may include:
If you moved outside the country, but declared that you wished to retain your Norwegian citizenship within one year of moving, acceptable documentation may include:
"The Norwegian Nationality Act of 21 April 1888".