The ACT and Northern Territory leaders say they are open to trials of new poker machine technology to prevent problem gambling.
Talks are under way between Tasmanian independent Andrew Wilkie and the federal government over technology in which pokies players would sign up for electronic cards which can put a cap on losses.
Mr Wilkie, who was elected on a platform of tackling problem gambling, says he will withdraw support from the Gillard government if legislation is not passed by mid-2012.
The prime minister will need the support of states and territories if she is to meet her commitment to Mr Wilkie.
ACT Chief Minister Jon Stanhope told the National Press Club in Canberra on Wednesday he was concerned about the impact of problem gambling on the community.
But he said he did not want any changes to impact on the not-for-profit sector, which operated machines through clubs in the ACT.
"I would like to see a trial of the technologies that are being mooted and the ACT government would support a trial and I hope that that can be achieved," Mr Stanhope said.
NT Chief Minister Paul Henderson said he was concerned about the impact of any changes on the funds which clubs provided to sport and community groups.
"We've got to make sure in this debate that we don't destroy revenue flows that go back to the community," Mr Henderson said.
But he said a technology trial was the way to go.