Letter of Invitation & Visa Information

Letter of Invitation

Please download and fill out all the required information on the online form completely to the best of your ability. Email completed forms to .

Please allow 7-14 days for AOC to process your invitation letter.

Important Information Regarding Visa Invitation Letters

  • Your name must be listed exactly as it appears on your passport. Any differences between the name on your passport and the name on your invitation letter or other documentation could lead to a delay and/or denial of your visa.
  • If you are presenting a paper, include the title and session in which the paper will be presented, or if you are exhibiting, please indicate so in your request.
  • Please note that each individual requesting an invitation letter must fill out a separate form. All letters will be sent in PDF form to the email address provided.
  • AOC reserves the right to request further information regarding the company or affiliation of the attendee to ensure the validity of requests. Meeting attendees need not wait until their paper is accepted to request a Visa Invitation Letter. AOC is unable to contact U.S. Embassies in support of an individual attempting to gain entry to attend a meeting.
  • We recommend that you secure your travel visa before registering for the conference, as cancellations after the preregistration cutoff may result in a cancellation fee.