Minister for Transport Leo Varadkar has named the new chairpersons of CIÉ and of its three constituent companies, Dublin Bus, Bus Éireann and Iarnród Éireann.
The four appointees will now appear before the Oireachtas Transport Committee to outline their plans for the role.
The new chairperson of CIE is management consultant Vivienne Jupp.
Former Secretary General of the Department of Enterprise & Employment Kevin Bonner is the new Chair of Dublin Bus.
Paul Mallee, President of the Chartered Institute of Transport and Logistics in Ireland, becomes Chair of Bus Éireann and the Chair of Iarnród Éireann will be Phil Gaffney, former Managing Director of the Hong Kong Metro.
Two of the four appointees emerged through a new process of public advertisement, which led to more than 270 expressions of interest being received.