A Certificate of Citizenship is the document U.S. Citizenship and Immigration Services (USCIS) issues to prove you are a U.S. citizen when you became one through a parent rather than by being born on U.S. soil or naturalizing yourself. You get it by filing Form N-600 (or Form N-600K if the child lives outside the United States) with evidence of your parent’s citizenship and the required fee. The certificate does not create your citizenship; it documents citizenship you already have, which is why a denial doesn’t strip your status and an approval simply puts the proof on paper.
Who Qualifies
Eligibility turns on how you became a citizen. There are two paths, and each has its own rules.
Citizenship Acquired at Birth Abroad
If you were born outside the United States to at least one U.S. citizen parent, you may have been a citizen from birth. The specific requirements depend on when you were born and which parent was the citizen, but the general framework is that the citizen parent needed to have lived in the United States for a certain number of years before your birth.
Children who live outside the United States apply through Form N-600K under Section 322 of the Immigration and Nationality Act. That path requires the U.S. citizen parent to have spent at least five years physically present in the United States, with at least two of those years after turning 14.1GovInfo. 8 USC 1433 – Children Born and Residing Outside the United States; Conditions for Acquiring Certificate of Citizenship If the parent can’t meet that requirement, a U.S. citizen grandparent’s physical presence can substitute.2U.S. Citizenship and Immigration Services. Instructions for Application for Citizenship and Issuance of Certificate Under Section 322
Citizenship Derived Through a Parent’s Naturalization
If you were born abroad and at least one parent naturalized while you were under 18, you may have become a citizen automatically without filing anything at the time. Federal law requires three things: at least one parent is a U.S. citizen by birth or naturalization, the child is under 18, and the child is living in the United States in the legal and physical custody of the citizen parent as a lawful permanent resident.3Office of the Law Revision Counsel. 8 USC 1431 – Children Born Outside the United States and Residing Permanently in the United States; Conditions Under Which Citizenship Automatically Acquired The same rule reaches children adopted by U.S. citizens who meet the immigration-law definition of an adopted child.
Which Form to File
USCIS uses two forms, and the right one depends on where the child lives.
- Form N-600 is for people who acquired citizenship at birth abroad or derived it through a parent’s naturalization and are living in the United States.
- Form N-600K is for children of U.S. citizens who live outside the United States and are applying under Section 322.
Both go to USCIS with supporting evidence and the filing fee.4USCIS. USCIS Policy Manual – Certificate of Citizenship
Documents You’ll Need
The exact list depends on your situation, but USCIS will generally ask for your birth certificate, your U.S. citizen parent’s birth certificate or naturalization certificate, marriage certificates for your parents along with evidence that any prior marriages ended, and two passport-style photographs. If you’re relying on a grandparent’s physical presence to satisfy the Section 322 residency requirement, you’ll also need proof of that grandparent’s U.S. citizenship. The N-600K checklist spells the requirements out in detail.5U.S. Citizenship and Immigration Services. N-600K, Application for Citizenship and Issuance of Certificate Under Section 322
If you’re filing an N-600 and hold a Permanent Resident Card, USCIS will require you to surrender it as part of the process. If the card was lost or destroyed, USCIS can waive that requirement.4USCIS. USCIS Policy Manual – Certificate of Citizenship
Filing Fee and Fee Waiver
Both forms carry a filing fee, and USCIS updates the amounts periodically, so check the current fee schedule on the USCIS website before you file.
Form N-600 is eligible for a fee waiver through Form I-912. To qualify, you generally need to show that you receive a means-tested government benefit, that your household income falls below a set threshold, or that you’re experiencing financial hardship.6U.S. Citizenship and Immigration Services. I-912, Request for Fee Waiver If you request a fee waiver, you cannot file the N-600 online; it has to go by mail.7U.S. Citizenship and Immigration Services. Application for Certificate of Citizenship
How to File and What Happens After
Form N-600 can be filed online or by mail. Mail is required if you’re applying from outside the United States, requesting a fee waiver, or a military member or veteran filing on your own behalf.7U.S. Citizenship and Immigration Services. Application for Certificate of Citizenship Form N-600K follows its own filing instructions.
Not every applicant is called in for an interview. USCIS decides whether one is needed based on the evidence you submitted.8U.S. Citizenship and Immigration Services. N-600 Application for Certificate of Citizenship Frequently Asked Questions If something is missing, you’ll receive a Request for Evidence that spells out exactly what USCIS needs. Processing times vary by field office and shift throughout the year; the USCIS case processing times page shows current estimates for your office.
If Your Application Is Denied
A denial doesn’t necessarily mean you aren’t a citizen. It usually means USCIS didn’t receive enough evidence to confirm your claim. Common reasons include not responding to a Request for Evidence, missing a required appointment, or not producing the right documents to prove a parent’s citizenship or physical presence.
You have 30 days from the date USCIS issues the denial to file an appeal or motion using Form I-290B. If USCIS mailed the decision, you get 33 days from the mailing date.9U.S. Citizenship and Immigration Services. I-290B, Notice of Appeal or Motion USCIS will reject a late filing unless it qualifies as a motion to reopen, and even a late motion is only excused when the delay was reasonable and beyond your control.
If the denial was procedural and you now have the evidence, a motion to reopen is usually the right move. If you genuinely don’t meet the legal requirements for acquisition or derivation, an appeal won’t change the outcome, and an immigration attorney can help you weigh other options such as naturalization.
Replacing a Lost or Damaged Certificate
If your certificate is lost, stolen, or damaged, don’t re-file Form N-600. Use Form N-565, Application for Replacement Naturalization/Citizenship Document, which has its own fee.10U.S. Citizenship and Immigration Services. N-565, Application for Replacement Naturalization/Citizenship Document11U.S. Citizenship and Immigration Services. Application for Replacement of Naturalization/Citizenship Document The N-600 gets you your first certificate; the N-565 replaces one you already had.
How It Differs From Other Proof of Citizenship
Several documents can prove citizenship, and they overlap in ways that confuse people.
- A U.S. passport proves citizenship and allows international travel, but it expires and has to be renewed. It’s a travel document first, not a permanent record of how you became a citizen.
- A U.S. birth certificate establishes citizenship for people born on U.S. soil. It doesn’t help if you were born abroad.
- A Certificate of Naturalization (Form N-550) goes to people who went through naturalization themselves. If your parent naturalized and you derived citizenship automatically as a minor, you get a Certificate of Citizenship, not a Certificate of Naturalization.
- A Certificate of Citizenship (Form N-560) is the permanent record that you acquired or derived citizenship through a parent. It never expires, and it isn’t a travel document.
For someone who acquired citizenship at birth abroad or derived it through a parent, the Certificate of Citizenship is the foundational document. You can use it to apply for a U.S. passport and then rely on the passport for day-to-day proof, but the certificate is what establishes the underlying record. Keep it somewhere safe; replacing it takes time and money.