The new law passed today by the ACT Legislature is the first time such laws have been passed in Australia and it opens a way for the first same-sex couples' marriages to take place in December.
The law, though, already is headed for a High Court challenge by the national government, led by Prime Minister Tony Abbott, who opposes marriage rights for same-sex couples.
Late amendments were added Monday to strengthen the laws against challenge. The law covers same-sex couples only, while heterosexual couples remain covered under the Federal Marriage Act, which lawmakers hope will allow the law to avoid any constitutional conflict.