California Immigration

My Adopted Son is a U.S. Citizen?

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This article answers a common question for adoptive parents: whether a child you adopted can acquire
U.S. citizenship. It is based on the Child Citizenship Act and guidance from U.S. immigration authorities.

A family wrote in asking: Having adopted a child they could not have biologically, can their adopted
son become a U.S. citizen? The short answer from the attorney was “yes”. Under the right legal framework,
an adopted child may indeed become a U.S. citizen. 

The Child Citizenship Act (CCA) of 2000 allows certain foreign-born children — including adopted children —
to automatically acquire U.S. citizenship. However, they must meet specific criteria.

Child Citizenship Act

How Citizenship is Acquired for Adopted Children

Under U.S. law, a foreign-born child adopted by a U.S. citizen parent can automatically become a U.S.
citizen if all of the following are satisfied before age 18:

  • The child has at least one U.S. citizen parent by birth or naturalization. 
  • The child becomes a lawful permanent resident (LPR).
  • The child is residing in the United States in the legal and physical custody of the U.S. citizen
    parent after admission as an LPR. 
  • The adoption is legally full and final under U.S. immigration law. 

If these conditions are met, the adopted child automatically acquires U.S. citizenship by operation of law
and may be issued a Certificate of Citizenship. A Certificate of Citizenship is often necessary to obtain
a U.S. passport and to prove citizenship for other official purposes. 

Documentation and Process

When an adopted child qualifies for automatic citizenship under the CCA, parents may submit:

  • Form N-600, Application for Certificate of Citizenship — if the child did not automatically
    receive documentation. 
  • Evidence of adoption (final adoption decree). 
  • Evidence the child met all legal conditions before turning 18. 

In some cases, USCIS may automatically issue Certificates of Citizenship within 45 days of an adopted
child’s entry into the United States. 

Additional Notes

• Children admitted under certain immigrant visa categories (e.g., IR-3/IH-3) may automatically receive
documentation of citizenship without filing Form N-600. 
• Children admitted under other categories (e.g., IR-4/IH-4) may require additional steps before qualifying. 

If an adopted child does not qualify automatically (for example, because the adoption was finalized after
age 18), parents may still seek citizenship documentation or pursue naturalization on behalf of the child
as appropriate. 

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