Fianna Fáil's calling for a major injection of state funding to help the public transport system survive the pandemic.
It's after concerns Bus Eireann, Irish Rail and Dublin Bus could run out of money as early as next month.
According to the Irish Times, CIE has advised the Transport Minister the companies are in serious financial difficulty.
It's due to a big drop in the number of passengers during the Covid-19 crisis.
Fianna Fáil's transport spokesman, Marc MacSharry, says the government needs to intervene.
"Clearly public transport is critical to the nation's recovery, and we're going to have to step in as a state to ensure it continues.
" Also in the context of a new government, climate change and all the arrangements there, public transport is going to have to play a critical role.
"Clearly if a cash injection is needed that's what's going to have to be undertaken."
