It established that same-sex marriages from other jurisdictions are recognized by New Hampshire as valid from the date they were contracted, even if they pre-dated New Hampshire's recognition of same-sex marriage; that New Hampshire recognizes the same-sex marriages of non-residents whether or not their home jurisdiction recognizes the marriage; and allows those in civil unions in other jurisdictions to marry in New Hampshire without first dissolving their civil union. In May 2018, the New Hampshire General Court passed a bill to implement a clear minimum age of 16 with no exceptions. This bill also allows same-sex couples to get married at 16; the minimum age for same-sex couples was previously 18. Originally, the bill had a minimum age of 18 for all couples, but it was reduced to 16 in committee. On June 18, 2018, Governor Chris Sununu signed the bill into law. The law went into effect on January 1, 2019.  ! style="width:190px;"| Poll source ! style="width:200px;"| Date(s)administered ! class=small | Samplesize ! Margin oferror ! style="width:100px;"| % support ! style="width:100px;"| % opposition ! style="width:40px;"| % no opinion  A University of New Hampshire Survey Center poll, conducted in February 2004, found that 64% of New Hampshire residents opposed a federal constitutional amendment that would ban same-sex marriage. According to a poll, conducted in February 2005 by Research 2000 for the Concord Monitor, 51% of likely voters in the state supported a federal constitutional amendment to ban same-sex marriage. A University of New Hampshire Survey Center poll taken between January 27 and February 6, 2011 found that 62% of New Hampshire residents opposed the new Republican-dominated Legislature's efforts to repeal the 2009 law legalizing same-sex marriage, with only 29% in favor of repeal. In addition, 51% voiced strong opposition to repeal. A poll conducted between January 30 and February 3, 2011 by Greenberg Quinlan Rosner Research showed that 63% of residents opposed the bill repealing same-sex marriage, while 29% supported it. A July 2011 Public Policy Polling survey found that 80% of respondents supported legal recognition for same-sex couples, with 45% supporting same-sex marriage and 35% supporting civil unions, while only 19% thought that there should be no legal recognition and 1% were not sure. According to a University of New Hampshire Survey Center poll, conducted between September 26 and October 2, 2011, 62% of the state residents were against repealing same-sex marriage, 27% were for.