The travel.state.gov site has information about obtaining a visa for those traveling to the United States. The site also has links to websites for U.S. embassies and consulates worldwide. The embassy and consulate websites have very helpful information about procedures, timelines, communities served, required documentation, and fees.
Please note: International registrants should be particularly aware and careful about visa requirements and should plan travel well in advance.
Please refer to the Visa Information at the registration website regarding obtain support letters to attend ICDE 2017.