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Legal Sources & Authority

Understanding where U.S. citizenship law comes from

📚 Why Sources Matter

Not all sources are equal. The U.S. legal system has a hierarchy of authority. Understanding this hierarchy helps you verify information and know which sources to trust most. We cite multiple sources so you can verify everything yourself.

Hierarchy of Legal Authority

Higher sources take precedence over lower sources. If a regulation conflicts with a statute, the statute wins. If a policy conflicts with a regulation, the regulation wins.

1
U.S. Constitution
Supreme law of the land
2
Federal Statutes (U.S. Code)
Laws passed by Congress
3
Federal Regulations (CFR)
Rules issued by agencies
4
Agency Policy & Guidance
How agencies apply the rules
5
Court Decisions
Judicial interpretation

Primary Law (The Actual Law)

These ARE the law. Statutes passed by Congress and regulations issued by agencies. When in doubt, these sources take precedence over all others.

Government Agencies

Official agencies that implement and interpret immigration law. USCIS is the primary agency for citizenship matters.

Courts (Judicial Interpretation)

Court decisions that interpret the law. Supreme Court decisions are binding nationwide; circuit court decisions are binding in their region.

Research & Oversight

Government watchdogs and research organizations that analyze immigration policy, document problems, and propose solutions.

Secondary Sources

High-quality legal resources and advocacy organizations. Useful for research but always verify critical information with primary sources.

Understanding Legal Citations

8 U.S.C. § 1427

Title 8 of U.S. Code, Section 1427 (Naturalization requirements)

8 C.F.R. § 316.2

Title 8 of Code of Federal Regulations, Section 316.2

INA § 316

Immigration and Nationality Act, Section 316 (same as 8 U.S.C. § 1427)

Matter of Smith, 25 I&N Dec. 123

Board of Immigration Appeals decision in Matter of Smith

Our Commitment: CitizenApproved cites multiple authoritative sources throughout this website. We prioritize official government sources and clearly distinguish between primary law and secondary analysis. When in doubt, we link directly to the original source so you can verify information yourself.