Depending on your nationality, you may need a visa to come to the United States.
Check if you need a visa to travel to the United States
You can check if you need to apply for a visa here: https://travel.state.gov/content/travel/en/us-visas/visa-information-resources/wizard.html. For attending the conference, you should select “Business or Employment” as your reason for coming to the United States.
Visa Support Letter Request
To request a visa support letter, please visit: https://supportletters.acm.org/.
Apply for a Visitor visa
If you need to apply for a visa, you should follow the instructions here: https://travel.state.gov/content/travel/en/us-visas/tourism-visit/visitor.html.
Please start preparing your visa application well in advance of your travel.
Please contact the general chair if you have questions about the visa application process.