The Child Citizenship Act of 2000 allows certain foreign-born, biological and adopted children of U.S. citizens to acquire American citizenship automatically if they meet the following requirements:
- Have at least one U.S. citizen parent by birth or naturalization;
- Be under 18 years of age;
- Live in the legal and physical custody of the U.S. citizen parent; and
- Be admitted as an immigrant for lawful permanent residence.
In addition, if the child is adopted, the adoption must be full and final.