Attendees of the Cluster 2007 conference from countries other than the United States may require a U.S. visa to attend the conference. For further information, please see the U.S. visa web site.

Visa Confirmation Letter

In some situations, to apply for a U.S. visa, you will need a letter confirming that you are attending the Cluster 2007 (and/or Grid 2007) conference. The conference will provide these letters to:

• Speakers/Presenters
• Committee Members
• Attendees who have paid their registration fee in full and are not from one of the countries embargoed by the U.S. Treasury Departments Office of Foreign Assets Control.

If you need a confirmation letter, please email cluster2007-visas@tacc.utexas.edu or fill out the form with the following information: