American nationality law

American nationality law. The legal framework governing the acquisition, transmission, and loss of United States nationality is detailed in the Constitution of the United States and a series of Acts of Congress. The primary statutes are consolidated within the Immigration and Nationality Act of 1952, as amended. The Supreme Court of the United States has issued landmark rulings, such as in United States v. Wong Kim Ark, that have fundamentally shaped its interpretation. Administration and enforcement fall primarily under the United States Department of Homeland Security, specifically U.S. Citizenship and Immigration Services.

Acquisition of U.S. citizenship

Citizenship is acquired primarily through birth within the United States, a principle established by the Fourteenth Amendment to the United States Constitution and the pivotal 1898 ruling in United States v. Wong Kim Ark. Citizenship can also be obtained at birth abroad to U.S. citizen parents, with specific conditions outlined in statutes like the Immigration and Nationality Act of 1952. The process of naturalization allows a foreign national to become a citizen after meeting requirements including a period of lawful permanent residence, demonstrated attachment to principles in the U.S. Constitution, and passage of a civics and English test. Special provisions exist for certain individuals, such as children adopted by U.S. citizens under the Child Citizenship Act of 2000 and those who serve in the United States Armed Forces.

Loss of U.S. citizenship

Relinquishment of citizenship is a voluntary act, as affirmed by the Supreme Court of the United States in cases like Afroyim v. Rusk. The primary method is through a formal renunciation performed before a U.S. diplomatic or consular officer abroad, often at an embassy like the United States Embassy, London. Historically, citizenship could be lost for actions such as swearing an oath of allegiance to a foreign state, as seen in the Expatriation Act of 1907, but such involuntary loss was largely invalidated by later rulings including Vance v. Terrazas. Certain actions, like serving in a foreign military engaged in hostilities against the United States or committing acts of treason against the United States, may still lead to loss under the Immigration and Nationality Act.

Dual citizenship

The United States does not formally endorse dual citizenship but generally tolerates it, a stance influenced by Supreme Court decisions such as Kawakita v. United States. It arises automatically when a person acquires another nationality at birth under foreign law, such as being born in Canada to American parents, or through naturalization in a foreign country that does not require renunciation. The United States Department of State advises that dual nationals are subject to the laws of both countries when within their jurisdictions and may face obligations like military service, as is the case with South Korea. U.S. citizens, including dual nationals, must use a United States passport for entry into and exit from the United States.

Citizenship and U.S. territories

The application of citizenship law varies across U.S. territories. Individuals born in the District of Columbia, Puerto Rico, Guam, the U.S. Virgin Islands, and the Northern Mariana Islands are U.S. citizens at birth. This status for Puerto Rico was established by the Jones–Shafroth Act and affirmed in cases like Balzac v. Porto Rico. In contrast, those born in American Samoa and Swains Island are generally considered non-citizen nationals, a status stemming from the Insular Cases. These nationals owe allegiance to the United States and may live and work anywhere within it but cannot vote in federal elections unless they naturalize.

Historical development and legal basis

Early American law was rooted in English common law concepts. The first statute was the Naturalization Act of 1790, which limited naturalization to "free white persons." Major expansions followed the American Civil War, including the Civil Rights Act of 1866 and the Fourteenth Amendment to the United States Constitution, which constitutionalized birthright citizenship. The Expatriation Act of 1907 addressed loss of citizenship, while the Nationality Act of 1940 codified various rules. The modern framework was established by the Immigration and Nationality Act of 1952 (the McCarran–Walter Act), later amended by acts like the Immigration and Nationality Act of 1965 and the Child Citizenship Act of 2000. Key judicial interpretations came from the Supreme Court of the United States in Dred Scott v. Sandford, United States v. Wong Kim Ark, and Afroyim v. Rusk. Category:United States law Category:Nationality law