Visa Information:

The Association for Computing Machinery does not issue formal invitation letters for visas to attend ACM sponsored conferences. ACM can however issue a visa support letter. For Visa support letters, please send all requests to the Office of SIG Services supportletters@acm.org with the following information:

1. Name (as it appears on your passport) and mailing address
2. The name of the conference you wish to attend
3. Include your registration confirmation number
4. 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
5. Include a fax number or email address of where we can send the letter

Those requesting a letter should allow up to ten business days to receive it, as requests are handled in the order they are received.