THE NSW Young Nationals have voted in favour of marriage equality at their annual conference in Corowa, NSW.
The decision makes it the first youth division of a conservative political party to support same-sex marriage in Australia.
In a statement, the party said: "With this motion, the NSW Young Nationals have acknowledged the importance of marriage equality to young people in regional Australia.
"A young homosexual man living in regional NSW is six times more likely to commit suicide than members of the community as a whole."
This motion stated "that a same sex relationship is equally as important and valid as a heterosexual relationship".
"In the early 1970s, the Young Australian Country Party, as we were then, passed a motion to legalise homosexual acts between consenting adults in private, ten years ahead of the ultimate passing of legislation on that matter," the statement said.
"This outcome continues a proud NSW Young Nats tradition of working within The Nationals to push the envelope in terms of policy, challenging our senior counterparts and leading the debate on important issues to young people in regional NSW."
In June, NSW Premier Mike Baird offered support for a motion passed in the NSW lower house saying MPs should be free to express their views on same-sex marriage.
Federal Nationals MPs Kevin Hogan, Darren Chester, and Nigel Scullion all announced their support of same-sex marriage in July.