North Carolina Amendment 1 (often referred to as simply Amendment 1) was a legislatively referred constitutional amendment in North Carolina that (until overruled in federal court) amended the Constitution of North Carolina to prohibit the state from recognizing or performing same-sex marriages or civil unions. The amendment did not prohibit domestic partnership agreements, but defined male–female marriage as "the only domestic legal union" considered valid or recognized in the state.On May 8, 2012, North Carolina voters approved the amendment, 61% to 39%, with a voter turnout of 35%.