Visa Information
Do you need a Visa?
The participation to ACM HT’2025 conference is considered travel for business.
Some nationalities do not need to apply for visa to travel to USA for the conference.
The options for applying for a visa are:
- Option 1: ESTA (Visa Waiver Program) – Processing time up to 72 hours.
Countries participating in the program. - Option 2: B1 Visa (Travel for business) – Processing time up to 2 years.
For all the other countries that do not participate in the Visa Waiver Program, the attendees must apply for the standard B1 Visa. The processing time depends on the specific embassy/consulate and it can be estimated through the waiting time estimator.
Visa Support Letters Requests
ACM is able to provide visa support letters to attendees as well as authors with accepted papers, posters, or members of the conference committee.
For visa support letters, refer all requests to supportletters@acm.org. Please allow up to 10 business days to receive a letter. All requests are handled in the order they are received. The information below should be included with the request:
- Your name as it appears on your passport
- Your current postal mailing address
- The name of the conference you are registering for HT’2025. Only accepted authors may request a visa support letter prior to registering for the conference.
- Your registration confirmation number
- If you have any papers accepted for HT’2025, please provide the title and indicate whether you are the “sole author” or a “co-author”
- Authors may indicate their paper title. If no paper, speakers can provide the title of their presentation
ACM does not provide letters for transport of vendor or presenter equipment. ACM suggests shipping the materials insured to the conference facility.