General Visa Information

Short-term visitors and tourists to the UK who are nationals of the United States or European Union do not generally require a visa to enter the UK.
Requirements may vary for other nationalities and other immigration purposes. See for more information.

Letters from ACM

International registrants should be particularly aware and careful about visa requirements, and should plan travel well in advance. All visa inquiries must be handled by ACM headquarters.

Please note that ACM does not issue formal "letters of invitation" to any of its conferences.

Please send your request for a letter in support of a visa application to Ashley Cozzi at ACM headquarters:

Your request must include:

  • Your name
  • Mailing address
  • Fax number
  • Name of the conference you are attending
  • Authors of papers/posters should also include the title of the paper or poster

                        Genetic and Evolutionary Computation Conference (GECCO-2007)
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