Do I need a Visa...?

Boston

Citizens of most countries who visit the United States of America must have a visa. However, most Canadian citizens and many citizens from Visa Waiver Program countries can come to the U.S. without a visa if they meet certain requirements. Please make sure to verify these requirements in due time and to apply for the neccessary documents in order to participate in CAOS 2009.

New in 2009: Change in Visa Waiver Program

Since the January 12, 2009, citizens of countries participating in the Visa Waiver Program must apply electronically for travel authorization not later than 72 hours prior to their traveling to the USA. The Electronic System for Travel Authorization must be accessed through https://esta.cbp.dhs.gov/. It replaces the well-know, green I-94 forms that used to be distributed aboard inbound flight to the USA.

Details about the applicable law can be found on the corresponding pages of the U.S. Department of State.

Letter of Invitation

The Congress Secretariat will send you a letter of invitation upon request. The possibility of requesting such a letter is provided during the online registration procedure.

Please note: It should be understood that these letters are only to help participants to raise travel funds or to obtain a visa. They are not a commitment on the part of the organizers to provide any financial support. Moreover, the organizers take no responsibility whatsoever regarding a visa application procedure by the participant, and in particular not regarding the possible success or failure of such an application.

Applications for letters of invitation must be received prior to April 30, 2009. Requests received after that date cannot be processed.