1.

2. choose the country you are travelling to
Canada
USA
Disclaimer:
ACM SIGGRAPH International Resources Committee offers this as a service to make it easier to determine if you will need a visa to travel. However, we are not responsible for the veridity of this information. Official travel requirements may change at any time. While we make every effort to maintain this information current, some of it may be out of date. Please be sure to verify any requirements at the appropriate government Website or offices.