With the instatement of the Child Citizenship Act of 2000, United States citizenship is automatically aquired for the biological and adopted children of U.S. citizens.
There are a few requirements to this act:
- At least one parent of the child is a U.S. citizen, either by birth or naturalization.
- The child is under the age of 18.
- The child must be residing in the United States in the legal and physical custody of the U.S. citizen parent after having been lawfully admitted into this country as an immigrant for lawful permanent residence.
- If the child has been adopted, the adoption must be final.