The Government is expected to reaffirm its confidence in the Mahon tribunal in an amendment to a Fine Gael motion due to be debated in the Dáil today.
The secretary general of the Department of the Environment, Geraldine Tallon, and the secretary general of the Taoiseach's Department, Dermot McCarthy, were in discussions last night on the wording of the amendment.
Earlier talks on the issue had taken place between the programme managers of Fianna Fáil, the Green Party and the Progressive Democrats.
The final wording will go for approval to the leaders of the three Coalition parties this morning and will be put to a Cabinet meeting later.
It is understood that the Government will avoid reprimanding the tribunal as advocated by some Fianna Fáil figures at the weekend.
Government sources insisted last night that the Coalition parties were not having difficulty in agreeing the wording and that the discussions on the amendment were routine.