Information for International Travelers

Entry into the U.S.

Visas & Visa Waivers

ESTA & Visa Waiver Program
The Visa Waiver Program (VWP) allows citizens of 41 participating countries to travel to the United States without having to obtain a visa, for stays of no more than 90 days for the purposes of business, tourism, visiting, or pleasure. See if you are eligible for the Visa Waiver Program.

U.S. Visas
Visitors who are not eligible for the Visa Waiver Program need to apply for a visa to enter the United States. International attendees were encouraged to do this as soon as possible to avoid delays. Travelers may use the Visa Wizard to find out what visa type is appropriate for them.

Confirmed presenters and paid registrants were eligible to request a letter of invitation from ISPD Headquarters to support their visa application.