The Association for Computing Machinery does not issue formal invitation letters for visas. We can however issue a visa support letter. For visa support letters, please send all requests to Ashley Cozzi at firstname.lastname@example.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. Registration confirmation number
4. If you are the author of any papers accepted for the conference, please provide the title
5. Fax number
6. *Visa Support letters are not issued via email