John O'Mahony (Mayo, Fine Gael) | Oireachtas source

Thank you, Ms Goggin, for all that information. Before I hand over to members I wish to put a quick question. I note in today's edition of The Irish Timesa big investment in Ringaskiddy port, which is categorised as a tier 1 port. For clarification purposes, what are the other tier 1 ports? What is a tier 2 port? Perhaps we can have examples to clarify that?