The Federal Government is promising local communities they will have a say on sites for new nuclear power stations.

Northern Territory pastoralists say the Federal Coalition has broken an election promise that it would not build a radioactive waste dump there.

They are warning other communities not to believe the Coalition's promise it would hold plebicites before any nuclear power station sites are chosen.

But Deputy Prime Minister Mark Vaile says there is no need for alarm.

"The people we talk to in the community are quite comfortable with the fact that if anything happens in the future, there will be, as far as we are concerned, a binding plebicite," he says.

"So the ultimate decision, the final decision, has been given to local communities, and they've been empowered to make these decisions about their local communities".