Visa information for Ireland:
It is the sole responsibility of the attendee to take care of his / her visa requirements. Attendees who require an entry visa must allow sufficient time for the application procedure. Attendees should contact the nearest embassy or consulate to determine the appropriate timing of their visa applications.
The Republic of Ireland’s passport and visa requirements vary for different nationalities so check with your local Irish embassy or consulate before you travel. EU citizens need a valid passport or national identity card to enter the Republic of Ireland. Always check what form of ID is required by your individual airline, ferry company or travel agent before travelling. Although the Republic of Ireland is a member of the EU, it is not in the Schengen Area so Schengen visas do not apply.
Nationals from countries which are not exempt will require a Conference/Event visa to attend the Convention. There is an extensive list of countries requiring a visa available here (pdf). Requirements for Short Stay Conference Visa, Visa "C", are available here.
You can also find out about visa requirements from your local embassy or consulate. Anyone coming to the Republic of Ireland on a visa and wishing to visit Northern Ireland, England, Scotland or Wales, would need a multiple entry Irish visa and a UK visa as well. Your passport must be valid up to the return date of your trip to the Republic of Ireland.