Before 1 January 1925
If you became a citizen of another country before 1 January 1925, then you lost your Norwegian citizenship if you became a citizen of another country after you were born.
Documentation requirements
Documentation showing that you have not lost your Norwegian citizenship
In order to verify that you have not lost your Norwegian citizenship you must have documentation showing that you became a citizen of the other country when you were born (dual citizenship at birth) and that you were born before 1 January 1925.
Acceptable documentation may include:
- documentation from the authorities in the other country whose nationality you acquired, or
- a printout of the legislation relating to citizenship in the other country where you are a citizen that shows the clauses under which you became a citizen of that country.
Examples of documentation that may be acceptable if you acquired citizenship through a parent include:
- a birth certificate and documentation showing that one of your parents was a citizen of the country when you were born.
Examples of documentation that may be acceptable if you acquired citizenship because you were born in another country:
- birth certificate, passport or other documentation showing that you were born in the other country.
Documentation showing that you have lost your Norwegian citizenship
In order to be able to document that you have lost your Norwegian citizenship you must be able to show that you acquired the other nationality before 1 January 1925 and that you did not become a citizen of that country at birth.
Acceptable documentation may include:
- letter of decision/certificate/confirmation from the authorities of the country where you became a citizen showing when and how you became a citizen of that country.
Applicable law
"The Norwegian Nationality Act XX of 21 April 1888".