Understanding the difference between Form N-400 and Form N-600 is key to choosing the right path toward U.S. citizenship—or getting proof of the citizenship you already have.
Form N-600, the Application for Certificate of Citizenship, is used by individuals who acquired or derived U.S. citizenship through their parents. It allows you to request a Certificate of Citizenship from USCIS as proof of your status.
If you have acquired U.S. citizenship through your parents and are seeking proof of citizenship, the first step toward obtaining a Certificate of Citizenship is filing Form N-600 with USCIS. When applying, you will need to complete USCIS Form N-600 and provide a list of required documents.
While it's normal to have questions and concerns during this transition, being informed about the common areas of uncertainty can help ease the process.