Visa Information

Visa Information for Conference Travel to the USA



This information may change and it should be noted that the only authoritative sources of travel information come from U.S. government websites. Conference organizers cannot assume responsibility for the outcome of your visa application.

Countries Participating in the Visa Waver Program (VWP)


There are 38 countries that participate in the Visa Waiver Program. If your passport country is on that list, and you plan to be in the US for less than 90 days (and you have a valid passport that meets U.S. requirements) you do not need a visa. To see if your country is on that list, please visit this link:

If You Require an Invitation Letter


If you are an international participant for this meeting and require a letter of participation to substantiate why you are attending the conference, please send the following information to Please allow organizers 5 – 10 business days to respond. Letters will be sent in PDF form to the email address provided. You will be required to pay your conference registration before the letter will be sent. 


Full Name (exactly as it appears on your passport);


Prefix (e.g. Dr., Mr., Mrs., etc)

Title (Scientist, Engineer, Professor, Graduate Student …)

Affiliation (Laboratory, Company, University)

Full Address (street, city, state/province/region, postal/zip code, country)

Phone number:

Additional comments: invited speaker, contributed speaker.


How to Obtain a Visa


Apply for your visa as early as possible, as the application process can take up to six months or more. It is recommended you consult the U.S. Embassy or Consulate website where you plan to submit your application.

Useful Links