Talks are due to get underway on Monday afternoon in an effort to avoid a second planned bus strike by Dublin Bus and Bus Éireann which is scheduled to take place next Friday and Saturday.
The Labour Relations Committee has invited unions and management to attend talks at 3pm on Monday.
A two-day strike at the beginning of the month by members of Siptu and the National Bus and Rail Union (NBRU) in the companies affected the travel plans of hundreds of thousands of passengers.
The row centres on plans by the National Transport Authority(NTA), backed by the Government, to put out to tender 10 per cent of routes operated by the two State-owned bus companies.
Previous talks at the Labour Relations Commission aimed at finding a resolution to the dispute broke down without agreement.
