Visa Information

China Entry Requirements and Visa Applications

We recommend all conference participants to check their visa requirements to visit China before planning their travel. While some applicants may be exempt from visa, the others can apply for a visa at the Chinese embassy or consulate in the region in which they live. To avoid uncertainty, participants will be advised to apply for a visa as soon as possible. For further information please refer to General Information about Chinese Visas.

Local Support Letters

In case a visa letter signed by local organizer is needed, please reach out to local-2026@ubicomp.org with these details:

Full Name, Gender, Date of Birth, Passport Country, Passport Number, Passport Expiration, Tentative Arrival and Departure Dates and Address. If you are an author of a paper, please also let us know the paper title.

Please note that the visa letter issued by ACM may NOT be sufficient for the visa application.

Visa Support Letter Requests

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.

• ACM is able to provide visa support letters to attendees as well as authors with accepted papers, posters, or members of the conference committee.
• If you are a recipient of ACM, SIG, or Conference funded travel grant, please include this information in your request.
• For visa support letters, please complete the following request online: https://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. 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 the conference, 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.

All the information for visa support letters can be found here.