Visa Information for International Participants

Visa Waiver Countries

Visa waiver travelers from ALL 27 Visa Waiver Program countries must present either a machine-readable passport or a U.S. Visa. To learn more about the Visa Waiver Program & Machine Readable Passports see http://travel.state.gov/visa.

Non-Visa Waiver Countries

We recommend that you apply for your Visa at least three months in advance. Currently there is a mandatory security check period of 30 days for people whose passports are issued from several countries. U.S. consular offices now interview most applicants as part of the application process. Please ensure you arrive at the embassy with all required documentation at the time of your interview. Note that the ION does not intervene in U.S. State Department’s issuance of Visas.

Conference attendees requesting a visa letter to attend a conference must:

  1. Submit the visa letter request form using the button below.
  2. Register and pay all conference registration fees BEFORE a letter of invitation will be sent.

Exemptions to this policy apply only to those authors whose papers have been accepted for presentation, company personnel working in the exhibit area or trade associated press.

If the attendee is unable to secure a Visa, he/she will need to apply for a refund according to the printed refund rules of the event. Visa letter requests will only be reviewed AFTER you have submitted the Visa letter request form for your desired conference.

Request a Letter of Invitation