square logo



International Travel Information

To ensure that international attendees are familiar with the very latest U.S. passport and visa regulations, the following information is offered below:

As of January 5, 2004 , the US-VISIT program is in effect. Most foreign visitors to the U.S. will now have their two index fingers scanned, and a digital photograph will be taken at your port of entry. Complete information on US-VISIT is available on the Department of Homeland Security Web site .

Visa Waiver Program:
As of October 26, 2004 , visa waiver travelers from ALL 27 Visa Waiver Program countries must present a machine-readable passport or a U.S. Visa. The Visa Waiver Program could dramatically affect your ability to enter the U.S. , and we highly recommend that you learn more about the program now. Please take the time to read the latest news and details regarding the Visa Waiver Program .

Applied for your visa, but having difficulties?
The National Academies International Visitor Office has resolved more than 93% of visa processing problems that were brought to their attention . If you have applied for your visa and are having difficulties, please contact  The National Academies International Visitors Office and complete a questionnaire to request assistance.

Other helpful international travel links:

Invitation Letter
International attendees often need a letter of invitation in order to obtain a visa to visit the US . Because of increased scrutiny of visa applicants, many potential attendees of scientific meetings in the United States have experienced unusual delays in obtaining travel visas.

If you need a letter of invitation and have not yet requested it, please contact Natasha Charles (ncharles@seas.upenn.edu) and she will forward it as soon as possible. In order to compose and send your letter, she will need your document number, email address, and your complete mailing address.



Nano/Bio Interface Center @ The University of Pennsylvania
Home | Participents | Research | Education | Industry | Partners | Publications | Facilities | Events | Calendar | NIRT | Members