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A person born outside the United States to a U.S. citizen parent(s) may have already acquired U.S. citizenship. Such a person, to document their U.S. citizenship status based on U.S. citizen parentage can file form N600, Application for Certificate of Citizenship.
An individual may file form N-600, Application for Certificate of Citizenship, if they are trying to claim U.S. Citizenship by law while in the United States or if they were born abroad to U.S. Citizen parent(s).
If an individual is the biological or adopted child of a U.S. citizen parent, they were born outside the United States and they are claiming U.S. citizenship by action of law, they automatically become a U.S. citizen if:
NOTE: If the case where an individual was under 18 years of age on February 27, 2001, but did NOT meet all the required conditions mentioned above, then that person must qualify for U.S. Citizenship in their own right.
An individual may also file for a Certificate of Citizenship if the following happened before their 18th birthday and prior to February 27, 2001:
If an individual is the biological child of a U.S. citizen, they were born outside the United States and are claiming citizenship by having been born to U.S. citizen parent(s), the person automatically becomes a U.S. citizen at birth if:
An individual, born outside the U.S., claiming to have U.S. citizenship by birth to a U.S. citizen parent, may file Form N-600, Application for Certificate of Citizenship.
An individual who was born to a U.S. Citizen outside the United States or who met all the requirements for becoming a U.S. Citizen prior to their 18th birthday can file Form N-600, Application for Certificate of Citizenship, at any time during their lifetime.
If you were adopted or the biological child under the age of 18 meeting the requirements for citizenship under the Immigration and Nationality Act (INA), the form N-600 application must be filed by the U.S. citizen parent or legal guardian who has been awarded legal and physical custody of the child.
When applying for U.S. Citizenship through naturalization, United States Citizenship and Immigration Service (USCIS) does require a Citizenship test to be taken by all applicants. The Citizenship test will be based on the ability of reading, writing and speaking English, knowledge of American history and the government of the United States.