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.
If you chose to mail your USCIS application this can add another layer of stress. The process can be manageable if you are prepared and stay organized.