Obtaining Visas to Enter the United States:
Currently 36 countries participate in the Visa Waiver Program, which enables citizens of these countries to travel to the US for tourism and business for 90 days or less, without obtaining a visa, under certain conditions. More information can be found at:

Letters of Invitation:
Individuals requiring an official letter of invitation to attend the meeting may request one by marking the box entitled “To apply for a visa to the US I need an official invitation letter: [  ] PDF via email or [  ] original letter by post” on the registration form. In order to allow sufficient time for processing of visa requests by the State Department, please return the registration form as soon as possible. All requests are subject to review. This procedure is designed to assist participants who need to obtain a visa or permission to attend the meeting. The letter does not imply that any part of the registration fees or other expenses will be assumed by the meeting organizers.  For any questions please contact us at ict2011 [at] its [dot] org.