Free practice for the U.S. naturalization civics exam
USCIS offers three age- and residency-based exemptions from the English-language and/or civics requirements. Eligibility is determined at the time of filing Form N-400.
Your version depends on when you filed Form N-400. Choose below.
Official USCIS study materials
How to prepare for your USCIS interview
Useful links — all on uscis.gov
formN400.org is a free non-profit community project to help immigrants prepare for the U.S. citizenship test — entirely free, no ads, no personal data collection.
Built because everyone deserves access to quality test-prep materials, regardless of financial circumstances or language.
All civics questions are public-domain materials published by USCIS under 17 U.S.C. § 105. We do not own this content — we just make it easier to access.
formN400.org has no sponsors, no advertising, and will never charge users.
formN400.org is an independent educational resource. We are NOT affiliated with, authorized by, or endorsed by USCIS, DHS, or any U.S. government agency.
This is not legal advice. For immigration counsel, contact a licensed immigration attorney or an accredited representative.
Find free legal services at uscis.gov/avoid-scams/find-legal-services.
Found an error or want to contribute? Contact: [email protected]
Last updated: June 23, 2026
formN400.org is a free, non-commercial civic education resource. We are committed to your privacy. This policy explains what data we do and do not collect.
We do not collect, store, transmit, or share:
All information you enter stays in your browser's memory only and is permanently deleted when you close or refresh the page.
The single exception is the optional Case Status Helper (described below), which — once it is available — will contact our backend only to perform a case lookup you request.
The site will offer an optional Case Status Helper that will let you check the status of a USCIS case. This feature is not yet available. When you use it, you will type a USCIS receipt number. Here is exactly how that number will be handled:
The Case Status Helper will be provided for convenience only. It is not affiliated with, authorized, endorsed, or approved by USCIS or DHS. For official case information, always rely on your USCIS account at my.uscis.gov.
We do not sell user data for profit or for any other monetary transaction. We do not share de-identified, anonymized, or pseudonymized data with third parties for any reason without your active consent. Because we do not collect personal data in the first place, there is no user data available to sell, rent, trade, or share.
We retain no user-entered data. Quiz answers, selections, and interview-practice input exist only in the browser session and are permanently gone when you close or refresh the page. Once the Case Status Helper is available, any receipt number you submit through it will exist only in transient server memory for that single request and will be gone as soon as the lookup completes. Because nothing is stored, there is nothing for you to request the deletion of — there is no profile, account, or record to delete.
The one form of data that does exist is the standard server access log generated by our hosting and delivery provider, Cloudflare, when any website is served. These are ordinary content-delivery-network (CDN) logs that typically include items such as an IP address, a timestamp, the requested path, the response status, and a browser user-agent string. They are generated and managed by Cloudflare as part of operating the service, are retained under Cloudflare's own standard log-retention practices, and are not linked by us to your identity or to any case lookup. We do not maintain our own separate application logs of user content, and we do not use these CDN logs for analytics, advertising, profiling, or tracking.
The "Speak Practice" feature uses your browser's built-in Web Speech API. When you use this feature:
This site uses:
Under the California Consumer Privacy Act (CCPA), California residents have the right to know what personal information is collected. formN400.org does not collect personal information as defined by CCPA.
Because we do not collect or store personal data, there is no personal-data store that could be breached, and no collected records that could be exposed. If a security incident affects the service in any way, we will post a clear notice on this site. We hold no email addresses, phone numbers, or other contact details for users, so we cannot send individual notifications — site notice is the means available to us, and we will use it promptly.
If ownership of this site is transferred, or if the project is discontinued, there is no collected user data to transfer, because none is collected or stored. Any successor operator would be required to honor a privacy policy at least as protective of users as this one.
If we make a material change to this policy, we will tell you. Because the site has no user accounts and we hold no contact information, we provide that notice prominently on the site itself at the point of change — for example, a visible notice on this page and on the app's start screen — rather than by email. Each material change will be accompanied by a short, plain-language summary of what changed and why. The "Last updated" date above will reflect the new revision, and older versions remain available in the public repository history. We ask for your active agreement to material changes; simply continuing to use the site is not treated as acceptance of a changed policy.
Questions about this privacy policy? Email: [email protected]
Tóm tắt bằng tiếng Việt: formN400.org KHÔNG thu thập, KHÔNG bán, và KHÔNG chia sẻ dữ liệu cá nhân. Không có tài khoản, đăng nhập, quảng cáo, phân tích hay theo dõi. Câu trả lời luyện tập, lựa chọn ngôn ngữ/tiểu bang, và mọi thông tin bạn nhập chỉ tồn tại trong bộ nhớ trình duyệt trong phiên làm việc và sẽ mất khi bạn đóng hoặc tải lại trang.
Công cụ Tra cứu Tình trạng Hồ sơ (Case Status Helper): đây là tính năng tùy chọn chúng tôi sắp bổ sung, hiện chưa có. Khi bạn dùng, bạn sẽ nhập số biên nhận (receipt number); số đó sẽ được gửi trong phần thân yêu cầu (không bao giờ nằm trong địa chỉ URL trên trang này) tới máy chủ của chúng tôi tại api.formn400.org, chỉ để chuyển tiếp tới API chính thức của USCIS rồi trả kết quả về cho bạn. Số biên nhận KHÔNG bao giờ được ghi log, lưu trữ, lưu đệm hay giữ lại — nó chỉ tồn tại tạm thời cho đúng một lần tra cứu rồi bị loại bỏ; chúng tôi không gắn nó với danh tính nào và không lưu lịch sử tra cứu.
Lưu giữ & xóa dữ liệu: chúng tôi không lưu giữ dữ liệu bạn nhập, nên không có gì để bạn yêu cầu xóa. Dữ liệu duy nhất tồn tại là nhật ký truy cập máy chủ tiêu chuẩn do Cloudflare tạo ra; đó là log CDN thông thường, không được chúng tôi liên kết với danh tính bạn.
Sự cố bảo mật & thay đổi chính sách: vì không lưu dữ liệu cá nhân nên không có kho dữ liệu để bị xâm phạm; nếu có sự cố, chúng tôi sẽ đăng thông báo rõ ràng ngay trên trang. Nếu có thay đổi quan trọng về chính sách, chúng tôi sẽ thông báo nổi bật kèm bản tóm tắt dễ hiểu và xin sự đồng ý chủ động của bạn — việc tiếp tục sử dụng trang KHÔNG được coi là chấp nhận chính sách mới.
Last updated: May 21, 2026
According to USCIS policy information, some immigration or naturalization applications for nationals of certain countries may be paused or subject to additional review.
formN400.org is a study tool only. This website does not process applications, does not represent USCIS, and does not provide legal advice.
You can still continue studying and preparing.
Use this helper to check whether your USCIS receipt number looks valid, then open the official USCIS Case Status Online page.
A USCIS receipt number usually has 3 letters followed by 10 numbers, such as IOE1234567890.
Look for the receipt number on your USCIS receipt notice, such as Form I-797C, Notice of Action.
Your receipt number is processed only in your browser for format checking. It is not saved, logged, or sent to FormN400.org.
This is an independent study and navigation tool. It is not affiliated with USCIS or any government agency and does not provide legal advice.