- U.S. Department of Homeland Security
- U.S. Citizenship and Immigration Services (USCIS)
- USCIS Online Case Status Check
- USCIS Processing Times
- USCIS Civil Surgeon Locator
- USCIS Citizenship Resource Center
- U.S. Department of State
- U.S. Passport Information
- National Visa Center
- U.S. Embassy and Consulate Information
- Diversity Visa Program
- Visa Bulletin
- U.S. Customs and Border Protection
- U.S. Immigration and Customs Enforcement
- U.S. Department of Justice