ENTRY REQUIREMENTS – very important
U. S.citizens must have a valid passport which allows a visitor to stay in Ireland for up to 3 months without the need of a visa. Please make sure your passport is valid for at least 6 months from the date of re-entry into the United States (through January 16, 2013).
If you need to apply for a passport (new or renewal) please do so immediately. Applications may be found at post offices or from clerks of court offices. You may receive additional information at the U.S. State Department website: http://www.travel.state.gov/passport/passport_1738.html
It is always a good idea to make a copy of your passport and carry it with you in a separate place from the original.
If you are a citizen of a country other than the U.S. or Canada, please check with the nearest Ireland Consulate (in Los Angeles, 213-380-7915/6031, 8:30am-1:30pm) for the appropriate documentation required.