Sources
Every page on this site cites its own sources inline. This page collects the primary documents in one place — see the editorial policy for how and how often content is checked against them.
The civics test itself
- USCIS 128 Civics Questions and Answers (2025 version), form M-1778 — the official 2025 question bank, for N-400s filed on or after October 20, 2025.
- USCIS's official 100-question civics test — the 2008 bank, for N-400s filed before October 20, 2025.
- 90 FR 45047 (Federal Register, September 18, 2025) — the notice implementing the 2025 civics test and setting its filing-date cutover.
- USCIS Policy Manual, Volume 12, Part E, Chapter 2 — how USCIS applies the test-version and special-consideration rules.
Fees
- The USCIS fee schedule in force for the current N-400 filing fee, reduced fee, and fee waiver amounts — see N-400 fees for the current figures and their sourcing.
- The proposed fee rule discussed on that page, and its status as not yet in effect.
Exemptions
- Form N-648, Medical Certification for Disability Exceptions, and its instructions.
- The USCIS Policy Manual sections governing the 50/20, 55/15, and 65/20 age-based exemptions.
Who currently holds office
- congress.gov and unitedstates/congress-legislators (CC0) — current senators and representatives, cross-checked against official sources for each state page. See the answers that change for how and when this is checked.
- State government sources for each state's current governor.
The representative lookup tool
- The Census Bureau's 119th Congressional District to ZIP Code Tabulation Area (ZCTA) Relationship File — the public government dataset behind the district boundaries in the representative lookup.
- unitedstates/congress-legislators (above), for the current representative in each district.
Copyright
- 17 U.S.C. § 105 — the public-domain status of US Government works, which covers the official civics questions and answers reproduced on this site.
If you believe something on this site conflicts with one of these sources, please tell us — corrections are logged publicly on the corrections page.
Last verified against USCIS on .