Official "yes" and "no" campaign organisations for the Indigenous voice to parliament referendum are the stumbling block to securing the coalition's support for Labor's proposed changes to how referendums are held.
Australians will cast their vote in the referendum in the later half of this year, with the Albanese government set to introduce its legislation for the voice in March.
Before that occurs, it has legislation in parliament proposing a number of changes to how referendums will be held.
Speaking on the referendum machinery bill, opposition frontbencher Angus Taylor described the government's decision not to fund "yes" and "no" campaigns to ensure they adhere to laws, as disappointing.
"It's clear that if we're to have a strong process for the referendum, we should be ensuring there is a structure in place for those processes and regulatory bodies to start their work," he told parliament on Monday.
"The parliament should consider the fact that these changes reflect how we go about changing our national document today, but also in the future."
Indigenous Australians Minister Linda Burney said the government had made a significant concession by agreeing to pamphlets being sent to households outlining both cases in exchange for coalition support.
"We hope the opposition sees this and meets us halfway," she said.
However, a civics education and awareness program will be rolled out about the voice proposal to enable voters to make an informed choice.
The government has put in place regulations detailing a $9.5 million public education campaign on the referendum.
The campaign will be separate from measures being rolled out by the Australian Electoral Commission on telling people the process for casting their ballot in the referendum.
The program is set to focus on details about the constitution itself, how referendums are used to change the constitution and information about the voice.
The rollout of the campaign could begin as early as March and will be provided by a non-governmental organisation.
"While the program will target all Australians, specific content would be developed for Aboriginal and Torres Strait Islander people, as well as for culturally and linguistically diverse audiences," a statement said.
"It would not be a 'yes' campaign - but would increase understanding of the issues relating to the referendum question."
