The Greens want Tasmanians to be given a chance to have their say on the pulp mill legislation in a referendum to be held the same day as the March 15 state election.
Greens Leader Nick McKim said the legislation, to be debated in a special sitting of Parliament tomorrow, should not come into affect unless the majority of Tasmanians backed it.
The proposed legislation quashes any legal threat to the pulp mill and gives the buyers of the pulp mill permit until 2017 to start work.
Mr McKim also confirmed the Greens will move a no confidence motion in the government tomorrow.
The Liberals, who support the pulp mill legislation, have already ruled out supporting any moves to bring the government down.