The Association for Computing Machinery does not issue formal invitation letters for visas to attend ACM sponsored conferences. We 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 and mailing address as it appears on your passport
2. The name of the conference you wish to attend
3. Your Registration Confirmation Number
4. If you are the author of any papers accepted for the conference, please provide the title
5. A valid fax number and current mailing address (**Please note: visa support letters are NOT issued via email)

Updated February 2009