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International Attendees

Travel to the United States

With approximately 1000 international attendees at the AABB Annual Meeting, AABB is committed to being a resource of information for our international travelers. Below are a variety of links that will help prospective international attendees navigate through the waters of traveling to the United States.

Travelers from Visa Waiver Program Countries

Inbound travelers to the United States from Visa Waiver Program countries are required to register online via the Electronic System for Travel Authorization (ESTA) website. For information, visit the U.S. Visa Waiver Program homepage.

Travelers from Non-Visa Waiver Program Countries

Attendees traveling from countries that are not part of the Visa Waiver Program, you will need to apply for a visa at the American Embassy, Consulate or other visa-issuing office in their country of origin.

To obtain a Visa you will need the following:

  • A letter of Invitation
    (To be granted a letter of invitation you must first be registered to attend the AABB Annual Meeting. 
  • A valid passport, and
  • A completed Form DS 160 (Online Nonimmigrant Visa Application).

All visa applicants are advised to apply for their visa as soon as travel to the United States is contemplated, and not later than six months before the meeting. This means that international delegates should begin the visa process no later than April.

Other helpful information can be found on the following websites:

Be Prepared for Your Interview

Make sure you have all the necessary documentation with you at your interview. You will need the following:

  • A valid passport.
  • Appropriate visa application forms.
  • Your entire trip itinerary, including travel to any countries other than the United States, at the time of your visa application.
  • Documents detailing employment status, reason for travel and financial status. It is recommended that you provide an official letter of invitation from Show Management and proof of advance registration to attend the show.
  • Proof of previous visits to the U.S.
  • Proof of professional scientific and/or educational status (students should provide a university transcript).
  • Proof of payment of visa fees.
  • Any additional documents required by your local Embassy or Consulate.

Entry to the United States

A Visa only allows you to travel to the United States. You will still have to be admitted at your point of entry. Please visit the following websites for more information:

Be prepared to allow inkless fingerprinting and digital photographs upon entry to the U.S.

Visa Issues

If you have any specific problems, please contact the Bureau of Counselor Affairs at