The Association for Computing Machinery does not issue formal invitation letters for visas. However, we can issue a visa support letter. To get one, please send a request to supportletters@acm.org with all the information listed below.

• Name (as it appears on your passport)
• Your physical mailing address
• The name of the conference you wish to attend
• Include your registration confirmation number
• If you are the author of any papers accepted for the conference, please provide the title. If you are a speaker, please provide the title/topic of your speech.
• A fax number or e-mail address of where we can send the letter

Allow at least a week to receive it, as requests are handled in the order they are received.