The High Court will deliver on Thursday afternoon its decision on whether the Government's same-sex marriage postal survey can go ahead.
For the past two days the full bench of the High Court has heard two challenges to the Federal Government's controversial and non-binding survey on changing the Marriage Act to recognise same-sex marriages.
The court is expected to deliver its decision at 2.15pm on Thursday.
On Wednesday Commonwealth Solicitor-General Stephen Donaghue defended the survey as appropriate use of a government contingency fund, while opponents spent the previous day challenging the scheme.
Essentially the court is being asked to decide if the postal survey is a vote or a collection of statistical data, and if the Australian Bureau of Statistics (ABS) has the authority to conduct the poll.
The government is drawing $122 million from a fund available for "urgent and unforeseen" items to run the ballot -- money it says it appropriated lawfully.
Survey papers are expected to be sent to households throughout the country from early next week.