Role of states In the United States, civil marriage is governed by state law. Each state is free to set the conditions for a valid marriage, subject to limits set by the state's own constitution and the U.S. Constitution. Traditionally, a marriage was considered valid if the requirements of the marriage law of the state where the marriage took place were fulfilled. (First Restatement of Conflicts on Marriage and Legitimacy s.121 (1934)). However, a state can refuse to recognize a marriage if the marriage violates a strong public policy of the state, even if the marriage was legal in the state where it was performed. (Restatement (Second) of Conflict of Laws § 283(2) (1971).) States historically exercised this "public policy exception" by refusing to recognize out-of-state polygamous marriages, underage marriages, incestuous marriages, and interracial marriages. Following the Windsor decision in 2013, nearly all courts that have addressed the issue have held that states with laws defining marriage as a one-man, one-woman union cannot refuse to recognize same-sex marriages that were legally performed elsewhere and must permit all people, regardless of gender or sexual orientation, the right to marry.
Role of states In the United States, civil marriage is governed by state law Each state is free to set the conditions for a valid marriage, subject to limits set by the state's own constitution and the U.S. Constitution. Traditionally, a marriage was considered valid if the requirements of the marriage law of the state where the marriage took place were fulfilled (First Restatement of Conflicts on Marriage and Legitimacy s.121 (1934)). However, a state can refuse to recognize a marriage if the marriage violates a strong public policy of the state, even if the marriage was legal in the state where it was performed. (Restatement (Second) of Conflict of Laws § 283(2) (1971).) States historically exercised this "public policy exception" by refusing to recognize out-of-state polygamous marriages, underage marriages, incestuous marriages, and interracial marriages. Following the Windsor decision in 2013 nearly all courts that have addressed the issue have held that states with laws defining marriage as a one-man, one-woman union cannot refuse to recognize same-sex marriages that were legally performed elsewhere and must permit all people, regardless of gender or sexual orientation, the right to marry.