The Teachers' Union of Ireland has decided to recommend its members to reject the public service pay and reform proposals.
The decision was taken at a meeting this evening.
The Irish National Teachers' Organisation will ballot its 30,000 primary teacher members on the proposed deal.
In a statement, the INTO Executive said it would 'recommend acceptance of the terms of the draft agreement to members.'
The Association of Secondary Teachers Ireland (ASTI) will begin its formal deliberations tomorrow.
The proposed agreement reached between public sector management and unions is expected to dominate the three teacher conferences next week.
Meanwhile, the Civil Public and Services Union Executive has voted to lift the ban on overtime by its members.
The overtime ban has been directly impacting on services at the Passport Office.
Speaking after today's meeting, CPSU General Secretary Blair Horan said it had been a very long and very angry meeting on the agreements reached on public sector pay and reform between the Government and trade union officials yesterday morning.
He said this deal was in trouble as regards CPSU members and they feel there is nothing in this agreement for them.
Mr Horan said if the agreement had been voted on today it would probably have been unanimously rejected.
The CPSU Executive has decided to defer its formal decision about whether to recommend this deal to its members until 12 April.
Blair Horan said this would give the Executive a chance to consult with members on the ground and a decision would be taken on that date on when to ballot members.
It is likely that service in the Passport Office will start to return to normal as the overtime ban has been lifted.
Mr Horan said that counter closures had not been taking place there.