A child who has a green card may be able to become a U.S. citizen automatically through a U.S. citizen parent. This is called derivative citizenship. The rules can be important for families because the child must meet the requirements before turning 18, even though the application for proof of citizenship may be filed later.

This update explains the basic points in plain language. Each family’s documents and history can be different, so it is important to review the details carefully.

What Is Derivative Citizenship?

Derivative citizenship means that a child may receive U.S. citizenship through a parent who is already a U.S. citizen. The parent may be a U.S. citizen by birth or through naturalization.

This is different from a child applying to become a citizen through the usual naturalization process. According to the information provided by the American Immigration Lawyers Association, a qualifying child does not take a test on U.S. history, civics, reading, or writing.

Who May Qualify?

For this path to apply, several basic requirements must be met. The parent or adoptive parent must be a U.S. citizen. The child must be under 18 years old and must have lawful permanent resident status, commonly called a green card.

The child must also be living in the United States in the legal and physical custody of the U.S. citizen parent. Legal custody and physical custody are both important parts of the review.

In simple terms, the question is not only whether a parent is a U.S. citizen. It is also whether the child had a green card, was under age 18, and was in that parent’s legal and physical care while living in the United States.

Why the Child’s Age Matters

The child must meet the eligibility requirements before their 18th birthday. This is a key point for families to understand.

There may not be a deadline to file the application for proof of citizenship. However, the underlying requirements must have been met before the child turned 18. Families should not assume that waiting will change whether a child qualified at the required time.

Documents Families May Need

Families may need records that show the parent-child relationship, the parent’s U.S. citizenship, and the child’s lawful permanent resident status. The materials may also need to show the child’s entry into the United States and that the child was in the legal and physical custody of the U.S. citizen parent.

There may also be a need for documents about the U.S. citizen parent’s physical presence in the United States. The right documents depend on the facts of the family’s situation.

Ventresca & Ventresca LLP encourages families to collect and organize the documents they already have. Examples may include birth records, adoption records, proof of a parent’s citizenship, and proof of the child’s green card status. A careful review can help identify what may still be needed.

Important Family Situations to Review Carefully

Some situations need extra attention. For example, a child cannot derive citizenship through a U.S. citizen step-parent alone. The information in this update states that derivative citizenship is based on a biological parent or an adoptive parent.

Questions can also arise when the child’s biological parents were never married to each other. In those cases, USCIS may require particular proof. Families should avoid making assumptions based only on a child’s current immigration document or family relationship.

Proof of Citizenship: Form N-600 and a Passport

A family may seek a Certificate of Citizenship by filing Form N-600 with USCIS. If USCIS approves the application, the child receives a Certificate of Citizenship.

A U.S. passport may also be possible. A Certificate of Citizenship and a passport are different forms of evidence, and families may want to discuss the benefits of each option based on their circumstances.

For families navigating immigration law questions, the goal is to understand whether the child met the requirements and what evidence is available to support that conclusion.

Practical Next Steps

Start by confirming the child’s age, green card status, place of residence, and custody situation at the relevant time. Next, gather documents about the parent-child relationship and the U.S. citizen parent’s status.

Then, speak with an immigration attorney before filing. A legal review can help a family understand which records are relevant and whether Form N-600, a passport application, or another step should be considered. Ventresca & Ventresca LLP provides responsive legal guidance for individuals and families with immigration matters in Wexford, Pennsylvania, and beyond.

FAQ

Does a child need to apply before turning 18?

The child must meet the requirements before turning 18. The information in this update states that there is no deadline to apply for proof of citizenship, but the eligibility criteria must have been satisfied before that birthday.

Does the child need to take a citizenship test?

No. A child seeking derivative citizenship is not tested on U.S. history, civics, reading, or writing.

Can a child receive citizenship through a U.S. citizen step-parent?

No. The information provided states that a child may derive citizenship through a biological parent or adoptive parent, not a step-parent.

What if the child’s parents were not married?

This may require a closer review of the evidence USCIS needs. The documents required can depend on the family’s specific circumstances.

Should we apply for a Certificate of Citizenship or a passport?

Both may be possible in some situations. An attorney can explain the potential benefits of a Certificate of Citizenship and help determine the appropriate next step.

If this update may affect a pending or planned immigration matter for your family, contact Ventresca & Ventresca LLP to discuss your situation and available next steps.