Opponents of a potential nuclear waste dump in the Northern Territory will address a Senate inquiry in Alice Springs today.

The inquiry, which is investigating the repeal of the Commonwealth Radioactive Waste Management Act, began sitting in Alice Springs yesterday.

It has already heard from traditional owners of three proposed sites and the directors of the Central and Northern land councils.

Hilary Tyler from the Medical Association for Prevention of War will address the senators today.

"One of the things that the legislation does, it overrides the rights of people who live in the Territory, particularly Aboriginal people living on land," she said.

"It overrides their right to procedural fairness, it allows land to be nominated without their consent for the creation of a nuclear waste dump, a national nuclear waste dump."