Letter of Invitation

Individuals who require an official letter of invitation to obtain a visa and authorization to attend the 2023 American Association of Neurological Surgeons (AANS) Annual Scientific Meeting, must first register for the meeting. The letter of invitation can then be downloaded from the Registration Resource Center online at the conclusion of the registration process. The letter will require you to provide your full name, address, passport information and email to process the electronic, official letter of invitation.

The letter of invitation does not financially obligate the 2023 AANS Annual Scientific Meeting organizers in any way. All expenses incurred in relation to the meeting are the sole responsibility of the attendee.

Western Hemisphere Travel Initiative

The Western Hemisphere Travel Initiative (WHTI) requires all citizens of the U.S., Canada, Mexico and Bermuda to have a passport or other accepted document that establishes the bearer's identity and nationality to enter or depart the U.S. from within the Western Hemisphere. For more information, click here.