Visa Support


Citizens of a foreign country who seeks to enter the United States generally must first obtain a U.S. Visa, which is placed in the traveler’s passport.

It can take up to several months to obtain a Visa. We strongly recommend that participants traveling from outside the United States begin the process of securing a Visa as soon as possible. For information on how to start the process, including forms and appointment times, please click here.

Visa Waiver Program (VWP)

Certain international travelers may be eligible to travel to the United States without a Visa if they meet the requirements under the Visa Waiver Program (VWP). The VWP permits citizens of 38 countries to travel to the United States for business or tourism for stays of up to 90 days without a Visa. For the list of countries and the requirement for optioning a Visa waiver, please click here.

In order to travel to the United States without a Visa under the VWP, participants must have authorization through the Electronic System for Travel Authorization (ESTA) prior to boarding a U.S. bound air or sea carrier. For details on how to apply for an ESTA, please click here.

Visa/Invitation Letters

For participants traveling from outside the United States who require a Visa or invitation letter for their hospital, university, institute or local embassy, you may request a letter during the online registration process.

**Please note that securing a Visa or ESTA is the sole responsibility of each participant. The CoBrCa Congress Secretariat is not responsible for granting Visas and does not have any formal relationship with the U.S. Embassy.

If you have any additional questions, please contact the CoBrCa Secretariat: