Travel Visa Information

Conference attendees from outside the United States are urged to begin their visa application early.  The waiting time can be long and varies from country to country.

For the most accurate information on obtaining a visa visit

DAC Speakers/Presenters
If you are a speaker or presenter at DAC and would like an invitation letter, please email the following information:

Address (City, State/Country/Postal Code)
Email Address
Fax Number
Paper ID or Presentation Title


ESTA is now MANDATORY for Visa Waiver Program (VWP) travelers who are nationals of the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, the Republic of Korea, and the Slovak Republic.  Effective January 12, 2009, all VWP travelers will be required to obtain an authorization via ESTA before traveling to the United States. Learn more about ESTA on the DHS Customs and Border Protection (CBP) website.

Frequently asked questions

ESTA application

Visit USA

United States Visa Policies