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 firstname.lastname@example.org with the following information:
Your name as it appears on your passport Current postal mailing address
The name of the conference you wish to attend
Your Registration Confirmation Number
If you have any papers accepted for the conference, please provide the title and indicate whether you are the 'sole author' or a 'co- author'.
Please note visa support letters are issued via email by PDF and the original is mailed to your current postal address.
For more information on Visa Support Letters, please consult the ACM page here.