Passport and Visa Information

Requests for Invitation Letter for Visa Application

For many people, letters of invitation help smooth the visa process and we wish to support international attendees in their efforts to secure the needed travel documentation. However, in order to receive a letter of invitation, the meeting organizers must be assured that you intend to attend the meeting if your travel request is granted.  Individuals that require an official letter of invitation in order to obtain a visa and authorization to attend the meeting must register for the meeting first and then request a Visa Letter of Invitation.

We require that you provide your full name, address and email for us to process the official letter of invitation. The letter of invitation does not financially obligate the ISSX Scientific Meeting organizers in any way. All expenses incurred in relation to the meeting are the sole responsibility of the attendee.

ISSX cannot guarantee that you will receive a visa. The decision to grant visas is at the sole discretion of the embassy/consulate. The meeting organizers cannot change the decision of the governmental agency should your application be denied.  We are not able to directly contact any government’s visa issuing authority on your behalf.  We cannot send letters of invitation via express mail services.

To request a letter of invitation, please email (indicate "invitation letter" in subject line) ISSX at

Advance travel planning and early visa application are important. It is recommended that you apply early for your visa.