Same-sex marriage 2010 upon promulgation by the Argentine President. Argentina thus became the first country in Latin America, the second in the Americas, and the tenth in the world to legalize same-sex marriage. Australia became the second nation in Oceania to legalise same-sex marriage when the Australian Parliament passed a bill on 7 December 2017. The bill received royal assent on 8 December, and took effect on 9 December 2017. The law removed the ban on same-sex marriage which previously existed and followed a voluntary postal survey held from 12 September to 7 November 2017, which returned a 61.6% "Yes" vote for
Same-sex marriage by-laws once the Executive Branch notifies the ruling. The official notification was done on 12 January 2018. On 15 January, a same-sex couple applied for a marriage certificate. Their marriage was set to be performed on 20 January, and would have been the first same-sex marriage in Costa Rica, Shortly before the marriage date, however, the Superior Council of Notaries stated that notaries cannot perform same-sex marriages until legislative change or a Supreme Court decision, putting them at odds with the Costa Rican Government and the Inter-American Court of Human Rights, which stated in its ruling that legislative change is