The Albanese government appears set to get its way on the national anti-corruption commission as the Greens walk away from backing a coalition amendment.
Laws to set up the watchdog will be debated in the Senate on Tuesday in the expectation that they will pass both houses by the end of the week, the final sitting of parliament for the year.
The federal opposition was seeking support from the Greens and crossbenchers to ensure commissioner appointments require a three-quarters majority of a parliamentary oversight committee to go ahead.
Shadow attorney-general Julian Leeser said this process would ensure any appointments were made in a bipartisan way and did not become politicised.
Other amendments put in place safeguards for people interacting with the commission.
However, the Greens decided on Tuesday to reject the coalition amendment and instead push for a majority of the six government committee members plus one to approve a commissioner and inspector.
The minor party had called for the oversight committee to be independent of government.
The Greens remain in talks with the government about the proposal.
"It removes the absolute power of the government of the day ... but it also removes a veto from the opposition," Greens spokesman David Shoebridge said on Tuesday.
Attorney-General Mark Dreyfus called the coalition move "an effective veto" given the makeup of the 12-person committee.
"This is the Liberal Party trying to frustrate the will of the Australian people who voted for a powerful, transparent and independent National Anti-Corruption Commission," he told ABC Radio on Tuesday.
"They should stop playing this kind of game. If they're serious about tackling corruption, they'll back the bill in the form in which it's now in the Senate."
Mr Dreyfus said if the bill was amended in the upper house, the changes would be rejected by the government's majority in the lower house and returned to the Senate.
"The bill will pass this week," he said.
