The Northern Territory could be a step closer to having the country's first national nuclear waste dump with the Federal Government next week expected to announce possible legislative changes.

The changes could impact on how the Government would arrive at a final decision on where a dump should be located.

Four sites have been mentioned and despite any possible change, the Commonwealth still will have the capability to go ahead with a dump in the Territory.

The speculation has been fuelled by the Australian Conservation Foundation [ACF] claiming that Muckaty Station, around 120 kilometres north of Tennant Creek, is the most likely site.

The Northern Land Council is handling negotiations with the Commonwealth on behalf of the traditional owners at the station.

Ray Aylett has leased the property for the past 13 years and says he is not involved in the talks in any way.

He favours a dump which he says will bring added benefits like improved infrastructure.

"They told us that it will be underground in cement bunkers in plastic drums so it shouldn't worry anybody."

Mr Aylett says it will only take up one square kilometre of the 2241 square kilometre property and it would be around eight kilometres from the homestead.

However the National Nuclear Campaigner for the friends of the Earth, Dr Jim Green, argues that some of the more high grade waste would in fact be above ground. 

"One of the problems is that they [Federal Government] has not made any progress in finding a final location for that high level waste."