Visa Information

U.S. Entry for Nonimmigrants

If you need a visa to enter the U.S., please apply for one as early as possible. Visa applications are now subject to a greater degree of scrutiny than in the past. For many applicants, a personal appearance interview is required as a standard part of visa processing. Additionally, applicants affected by these procedures are informed of the need for additional screening at the time they submit their applications and are being advised to expect delays.


To avoid frustration and disappointment:

  • Advance planning by travelers is essential. Review your visa status and find out if you need a U.S. visa or a visa renewal.
  • Plan to submit your visa application well in advance of your intended departure date. Contact your nearest U.S. embassy or consulate for a current time estimate and recommendations.
  • Visit the embassy or consular section where you plan to apply for your visa. Visit their website to find important information on how to schedule an interview appointment and pay fees. An interview is required as a standard part of processing for most visa applicants.
  • Applicants must now also have two index-finger scans collected as part of the visa application process. These finger scans are normally collected by the consular officer at the visa interview window, but in some countries, they are collected prior to the visa interview.


Please note that this information is given in good faith, but the regulations may change. The only authoritative sources of information are the U.S. Government websites at

Visa Letters

Official letters of invitation for visa applications will be available to REGISTERED and PAID participants only. These letters do not and cannot commit the Organizing Committee to any financial obligation. Upon successful completion of your online registration and full payment of your registration fee, please contact to request your visa invitation letter.