The federal government has struck a deal with the Coalition on legislation setting out how this year's referendum on an Indigenous Voice to Parliament will be managed.
The legislation was passed by the Senate on Wednesday evening.
Labor made a concession in allowing an official pamphlet to be distributed across the country, outlining the respective "Yes" and "No" cases.
However, it has not agreed to the Coalition's demands for equal Commonwealth funding for both sides of the debate.
A national "neutral civics" campaign will be run to ensure voters understand the referendum process and the meaning of the constitutional change.
The deal effectively sidelines the Greens and Senate crossbenchers, who had also been proposing amendments to the machinery bill.
The agreement comes as the Referendum Working Group comes together in Canberra for its final meeting ahead of presenting the proposed wording and question for the referendum to the government.
"I think it's an example of how [constructively] the government and opposition can work together to get the best result for the Australian people," Special Minister of State Don Farrell told the Senate, confirming the details of the deal.
Shadow Special Minister of State Jane Hume responded: "We would very much like to [give thanks for] the constructive way in which the government has engaged with the opposition."
Country Liberal Party senator Jacinta Nampijinpa Price said she had not spoken with Opposition Leader Peter Dutton on his position on the referendum machinery bill.
"I'd like for an official 'Yes' and 'No' campaign to be funded and if that is not available I will be crossing the floor," she said.
"Obviously Mr Dutton has his reasons. I'm yet to have a conversation with Mr Dutton but I'd like to be able to have a conversation with [him]."
The Greens had wanted to expand voting eligibility to ensure Indigenous Australians currently serving sentences of fewer than three years could have their say.
The government did not support an amendment from independent senator David Pocock, who was trying to have the advertising blackout period ahead of the referendum extended to include social media.
Senator Pocock had wanted the traditional "media blackout" period applied to television, radio and newspapers extended to social media — as well as donations reform.
"Social media now is a very legitimate advertising channel, in fact millions and millions of advertising dollars are spent on social media … it just seems common sense to bring this up to date," he said.
Senator Farrell said the purpose of changes to the bill were to make the experience of the referendum feel as much as possible like a general election and, "like it or not", currently there was no ban on social media advertising before federal elections.
One Nation leader Pauline Hanson had wanted the referendum to be held on the same day as the next federal election.
