Millions of pamphlets outlining the official "yes" and "no" cases for the Voice to parliament are going out across the country.
The Australian Electoral Commission has printed off 13 million pamphlets to go out to households around Australia.
They aim to deliver them all by mid to late September, Australian electoral officer Nye Coffey said.
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And he urged anybody who wanted to get involved to put their hand up.
"We need 100,000 people right across the country and we're ramping up right now," he said.
The pamphlet is also available online, along with instructions on how to properly fill out a referendum ballot, and the text of the proposal.
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No date for the referendum has yet been announced.
Recent polling suggests the referendum could be on the road to defeat, but Prime Minister Anthony Albanese has kept up outward confidence that Australians will endorse the constitutional change.
