The Labour Court is expected to issue a recommendation today in the Irish Rail pay dispute.
Unions say they will meet as soon as the recommendation is issued to discuss the court's findings.
However, unions are warning it is too early to say whether they'll go ahead with the proposed third day of strike action next Tuesday.
Two 24-hour work stoppages have already taken place, with three more scheduled over the coming weeks.
Dermot O'Leary, General Secretary of the NBRU, said that representatives of five unions will meet this afternoon.
He explained: "The issue related to Tuesday will be decided by the committee this afternoon - and again the recommendation will play a large part in their deliberations."
Workers at Irish Rail want a pay rise of 3.75% a year for the next three years.
However, management at the transport company has said that is not sustainable.