According to the United States Government Accountability Office (GAO), there are 1,138 statutory provisions[1] in which marital status is a factor in determining benefits, rights, and privileges. These rights were a key issue in the debate over federal recognition of same-sex marriage. Under the 1996 Defense of Marriage Act (DOMA), the federal government was prohibited from recognizing same-sex couples who were lawfully married under the laws of their state. The conflict between this definition and the Due Process Clause of the Fifth Amendment to the Constitution led the U.S. Supreme Court to rule DOMA unconstitutional on June 26, 2013, in the case of United States v. Windsor. DOMA was finally repealed and replaced by the Respect for Marriage Act on December 13, 2022, which retains the same statutory provisions as DOMA and extends them to interracial and same-sex married couples.
Prior to the enactment of DOMA, the GAO identified 1,049 federal statutory provisions[2] in which benefits, rights, and privileges are contingent on marital status or in which marital status is a factor. An update was published in 2004 by the GAO covering the period between September 21, 1996 (when DOMA was signed into law), and December 31, 2003. The update identified 120 new statutory provisions involving marital status, and 31 statutory provisions involving marital status repealed or amended in such a way as to eliminate marital status as a factor.
The first legally-recognized same-sex marriage occurred in Minneapolis,[3] Minnesota, in 1971.[4] On June 26, 2015, in the case of Obergefell v. Hodges, the Supreme Court overturned Baker v. Nelson and ruled that marriage is a fundamental right guaranteed to all citizens, and thus legalized same-sex marriage nationwide.