The Association of Secondary Teachers in Ireland (ASTI) is to ballot members on new Haddington Road proposals.
It follows a meeting of the union’s central executive council earlier today.
The 180-member executive body also voted to put the proposals to a ballot of union members with a recommendation that members reject the proposals.
The union says while the new proposals contain a number of changes and new commitments in relation to teachers and education, members outlined that second-level teachers all over the country are exasperated by what they describe as the ongoing damage to second-level education.
The central executive council also expressed the view that the changes which emerged from the recent talks are not acceptable.
The ballot will take place over the coming weeks.