United States nationality law details the conditions in which a person holds United States nationality. In the United States, nationality is typically obtained through provisions in the U.S. Constitution, various laws, and international agreements. Citizenship is a right, not a privilege. While the domestic documents often use citizenship and nationality interchangeably, nationality refers to the legal means in which a person obtains a national identity and formal membership in a nation and citizenship refers to the relationship held by nationals who are also citizens.

Individuals born in any of the 50 U.S. states, the District of Columbia or almost any inhabited territory are natural-born United States citizens. The sole exception is American Samoa, where individuals are typically non-citizen U.S. nationals at birth. Foreign nationals living in any state or qualified territory may naturalize after becoming permanent residents and meeting a residence requirement (normally five years).

History.

Constitutional foundation.

Nationality defines the legal relationship between a person and a state or nation, specifying who is a member or subject of a particular nation. The rights and obligations of citizenship are defined by this relationship, as well as the protections to which nationals are entitled. Though nationality and citizenship are distinct and the United States recognizes the distinction between those who are entitled or not entitled to rights, its statutes typically use the words "citizen" and "citizenship" instead of "national" and "nationality". The Constitution of the United States did not define either nationality or citizenship, but in Article 1, section 8, clause 4 gave Congress the authority to establish a naturalization law. Before the American Civil War and adoption of the Fourteenth Amendment, there was no other language in the Constitution dealing with nationality.

Nationality laws 1790–1866.

The first statute to define nationality and naturalization in the United States was the Naturalization Act of 1790. It limited those who were eligible to be nationals as free, white persons. Following the practices of English common law, the legal system of the United States absorbed coverture, or the assumption that a woman's loyalty and obligations to her spouse were more important than her loyalty and obligation to the nation. While the Nationality Act did not forbid a woman to have her own nationality, judicial rulings and custom on domestic matters established that infants, slaves, and women were unable to participate in public life, as a result of the belief that they lacked critical judgment and had no right to exercise free will or control property. Native Americans were considered to be subjects of foreign governments and per decisions like Dred Scott v Sandford (1857) were only eligible to become naturalized if they assimilated white culture. From 1802, only fathers were able to pass on their nationality to their children. The Naturalization Act of 1804 confirmed that a woman's nationality was dependent upon her marital status and the Naturalization Act of 1855 tied a wife's nationality, and that of her children, to her husband's. A wife who married a foreign husband in this period was assumed to have suspended her nationality in favor of his. She was able to repatriate upon termination of the marriage and resumption of residence in the United States. While the 1855 Act specified that foreign wives gained U.S. nationality, the law created confusion as to whether it required American women who married aliens to take the nationality of the spouse. For example, Nellie Grant, daughter of President Ulysses S Grant, reacquired her U.S. nationality in 1898 by an Act of Congress, after a divorce from a British husband.