There are renewed calls for the Federal Government to scrap its plans to build a nuclear waste dump in the Northern Territory.

A new storage facility for radioactive waste could be built at the Lucas Heights research reactor in Sydney.

The Federal Government is also considering three sites in the Northern Territory for a long-term waste dump.

Natalie Wasley from the Beyond Nuclear Initiative says there is no need to bring the waste to the NT.

"This is welcome news for the targeted communities because it means that there are other options that the Federal Government can be looking at for the waste, the majority of which is produced at the Lucas Heights reactor," she said.

She says the Commonwealth Radioactive Waste Management Act should be repealed, as promised.

"Before the federal election there was a very clear commitment from the Labor Government that they, if elected, would repeal the Commonwealth Radioactive Management Act, so we're really strongly encouraging them to do that and to actually repeal that act and scrap the NT dump plan."