FIANNA Fáil leader Micheál Martin, who was preparing for today’s Mahon Tribunal Report debate in the Dail, said the announcement brought clarity to the referendum issue.
He said his party would be supporting a Yes vote.
And he added that, given the short timeframe, it was important that a good information campaign be launched.
Gerry Adams, the leader of Sinn Féin, said the Government had tried to avoid a referendum.
He said Sinn Féin believed it to be a bad treaty.
Warning of the consequences of a Yes vote, Mr Adams said the Fiscal Treaty would cost the country an extra €6bn in cuts.
It would also, he said, give too much power to unelected administrators in Brussels.
He said his party would be campaigning vigorously against it.
Joe Higgins TD said the treaty would mean ‘’permanent austerity’’.