International Attendee Information
As early as January 1, 2008, ALL persons, including U.S. citizens, traveling between the U.S. and Canada, Mexico, Central and South America, the Caribbean, and Bermuda by land or sea (including ferries), may be required to present a valid passport or other documents as determined by the Department of Homeland Security. While recent legislative changes permit a later deadline, the Departments of State and Homeland Security are working to meet all requirements as soon as possible. Ample advance notice will be provided to enable the public to obtain passports or passport cards for land/sea entries.
Passports and Visas
For security reasons, there have been several changes over the last few years for entering the United States. The overall goal is to enhance security and facilitate legitimate travel to and from the United States. Advance travel planning and early visa application are important, since visa applications are subject to a greater degree of scrutiny than in the past. To find information specific to your country or region, you may also go to the website of your nearest U.S. Embassy or Consulate.
UnitedStatesVisas.gov is an official source of information about U.S. visa policy and procedures. Use this site to learn about the visa application process, understand current requirements, and get updates on recent developments.
US-VISIT is part of a continuum of security measures that begins outside land borders, when a person applies for a visa to travel to the United States, and continues on through entry and exit at U.S. air and seaports and, eventually, at land border crossings. The US-VISIT program enhances the security of U.S. citizens and visitors by verifying the identity of visitors with visas.
New Requirements For Travelers From Canada, Mexico, Central and South America, the Caribbean, and Bermuda.
Beginning December 31, 2006, those traveling by air or sea from Canada, Mexico, Central And South America, the Caribbean, and Bermuda must have a passport or other secure, accepted document to enter the United States. This new requirement will also affect certain foreign nationals who currently are not required to present a passport to travel to the United States. Most Canadian citizens, citizens of the British Overseas Territory of Bermuda, and to a lesser degree, Mexican citizens will be affected by the implementation of this requirement.
Apply for your visa as early as possible.
Attaching evidence of your previous visits to Clinical Nutrition Week may help the application processing time.
Attaching evidence of your intended return trip to your home country can shorten the application processing time.
Invitation Letters
Requests for invitation letters will only be accepted online. Contact A.S.P.E.N. by phone at 301-587-6315 with any questions. Click here to request an invitation letter.