Cook
Banned
Australian Electoral Commission said:Double majority
Any alteration to the Consitution must be approved by a ‘double majority’, that is:
The ‘double majority’ provision makes alterations to the Constitution difficult. Since Federation, only 8 out of 44 proposals to amend the Constitution have been approved.
- a national majority of electors (more than half the voters in Australia must vote YES); and
- a majority of electors in a majority of the States (ie. at least four of the six) (more than half the voters in more than half the States must vote YES)
http://www.aec.gov.au/Elections/referendums/Referendums_Overview.htm