Get official proof of U.S. citizenship acquired through parents.
People who acquired U.S. citizenship automatically through a U.S. citizen parent.
Form N-600 is used to get an official Certificate of Citizenship if you are already a U.S. citizen by birth or through your parents. It does not grant citizenship — it proves citizenship you already have.
Determine if you acquired citizenship automatically through a parent
Gather evidence of parent citizenship and your relationship
File N-600 with USCIS
Attend interview if required
Receive Certificate of Citizenship
Born abroad to a U.S. citizen parent who meets the required physical presence requirements in the U.S. before the child's birth
Adopted by U.S. citizen parents and meeting specific residence and custody requirements
Automatically naturalized as a child when a parent naturalized while the child was under 18 and residing in the U.S. as a permanent resident (under the Child Citizenship Act)
The specific rules for automatic citizenship depend heavily on the exact dates involved — the law has changed several times over the decades, so the rules that applied at the relevant time matter, not necessarily today's rules.
Your birth certificate
Evidence of your parent's U.S. citizenship (birth certificate, naturalization certificate, or passport)
Evidence of the parent's physical presence in the U.S. before your birth, if claiming citizenship through a parent born abroad
Proof of legal permanent resident status and residence with the citizen parent, if applicable
Applying the wrong version of the law. Citizenship transmission rules have changed multiple times — using current rules for an older case can lead to an incorrect assessment of eligibility.
Incomplete proof of parent's physical presence. Simply having a U.S. citizen parent isn't always enough — specific physical presence requirements in the U.S. often apply too.
Confusing N-600 with naturalization. N-600 doesn't grant citizenship — it only certifies citizenship you already legally have. If you're not sure you qualify, this is worth confirming with an attorney before filing.
Do I need N-600 to prove I'm a citizen? Not always — a valid U.S. passport can often serve as proof of citizenship. A Certificate of Citizenship is useful for situations specifically requiring that document, or when a passport isn't sufficient.
What if I'm not sure whether I automatically became a citizen? This is exactly the kind of question worth an attorney consultation, since the rules depend on your specific birth date, parents' citizenship timing, and residence history.
Is there an age limit to apply? No — adults who acquired citizenship as children but never got documentation can still apply for N-600 later in life.
📄 Official Form on USCIS.gov →Use ClearPath's free tools to check your own situation
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