Some €10.5 million has been paid out by the Exchequer on Integrated Ticketing since the commencement of the project. Another sum for approximately €0.5 million has been approved for payment and is currently in the process of being paid. The Integrated Ticketing Project Board, which is responsible for integrated ticketing, is chaired by Mr. David O'Callaghan, a former Secretary General at the Department of Defence. The Board also comprises the Chief Executives of the Railway Procurement Agency (RPA), Dublin Bus, Irish Rail, Bus Éireann and a representative of licensed private bus operators nominated by the Coach Transport and Tourism Council. An Assistant Secretary from my Department is also on the Board and a senior representative of the Department of Social and Family Affairs also attends as required.