Federal independent MP Andrew Wilkie says he will withdraw his support for the Government if it does not make good on its promised gambling reforms.

The Government is trying to convince the states and territories to agree to a card-based scheme forcing poker machine players to set betting limits before they play.

The Government also needs approval from the Parliament.

Mr Wilkie says he thinks the Government can deliver, but has warned he will withdraw his support for Prime Minister Julia Gillard and her minority government if the reforms do not go ahead.

He says it is a test of leadership for Ms Gillard.

"My agreement with the Prime Minister that there be a mandatory pre-commitment scheme nationally in 2014 is carved in stone. I am immovable on that. I will never compromise," he said.

"I can say with some confidence that we've got the numbers that I believe we can get this through the Parliament.

"Yes, my support for the Government hinges on it achieving that."

The Government also wants to set withdrawal limits for ATMs in pokie venues.

Small clubs and those in country areas are likely to get special treatment under the proposed gambling laws.

Mr Wilkie says decision-makers will try to accommodate the concerns from smaller venues but he will not specify the details.

"There is no suggestion here that we're backing off from mandatory pre-commitment in small venues," he said.

"All we're saying here is that the Productivity Commission recommended they do have special considerations and we do need to be mindful as far as exactly how we go about implementing mandatory pre-commitment."

The Government has ruled out using fingerprints or other biometric information as part of its plan to force gamblers to set betting limits before they play.

Mr Wilkie agrees with the decision and says it will not make the scheme any less effective.

"Any system is vulnerable to the most clever people rorting it, and whatever we were to roll out there would probably be someone, somewhere who would rort it," he said.

"But I am satisfied that these technologies, which even the banks use, will provide the level of integrity we'll need for the job."