https://en.wikipedia.org/wiki/Indigenous_Voice_to_Parliament

"By this time next year, the Voice to Parliament referendum will have been held, Prime Minister Anthony Albanese says": https://www.sbs.com.au/news/article/anthony-albanese-flags-indigenous-voice-to-parliament-referendum-to-be-held-within-year/6dpprmn05

"To pass a referendum, the bill must ordinarily achieve a double majority: a majority of those voting nationwide, as well as separate majorities in a majority of states (i.e., 4 out of 6 states)": https://en.wikipedia.org/wiki/Referendums_in_Australia