NEW moves to force a radioactive waste dump on the Territory will become law, with the federal Coalition yesterday announcing it would support the measures.

The decision means Labor representatives Warren Snowdon, Damian Hale and Trish Crossin will be saved from a public vote on the bill.

Mr Snowdon has long been an opponent of a waste facility in the Territory and Mr Hale has said he would vote against the legislation, a decision that could have affected his career in the Labor Party.

Senator Crossin voted to support the legislation in the Labor Caucus, so would likely vote for it in the Senate.

But with the Coalition saying it will support the Bill, it will not be put to a formal vote.

Liberal Senator Nick Minchin, from South Australia, said the Coalition would support the move because it reflected Coalition policy.

"Labor's Bill largely reflects the Commonwealth Radioactive Waste Management Act 2005, which was established by the previous Coalition government in order to select a suitable site," he said.

"Labor has chosen to repeal this Act to honour an election commitment, after criticising the site selection process outlined in the Act, only to now replace it with a very similar piece of legislation."

Chief Minister Paul Henderson is in Canberra to meet with Prime Minister Kevin Rudd and raise the Territory's opposition to the dump.

Mr Henderson tried to turn the pressure on Opposition Leader Terry Mills, saying he should call on the Coalition to vote against the law.

"Terry Mills is the first Territory political party leader to fail to stand up for the Territory's rights," he said.

Mr Mills said the Labor Party had "betrayed the Territory".

"If the Chief Minister's serious about stopping it (a waste dump) he should move ... to disendorse Senator Trish Crossin, Warren Snowdon and Damian Hale," he said.