A visa is required to enter the United States for many nationalities. Please check with your local U.S. embassy/consulate whether this applies to you. In case a visa is required, please apply as soon as possible, as obtaining the visa may take several weeks.
The United States Department of State provides a list of contries that are participants in the Visa Waiver Program here. If you qualify, you will not need a letter.
If you need an invitation letter to HPCA 2015, you should register for the conference first and then complete the visa information form. Please note that we reserve the right to wait until the registration charges have cleared through the credit card system before issuing the letter.
Detailed Mailing Address:
Date of Birth:
In case that you are the (co-) author of an accepted paper, provide the title information of your paper.