Visas and Invitation Letters

If you live outside the United States, you will probably need a visitor visa (B1/B2) to enter the United States to attend Zeolite '06. See these links for exceptions:

The visa application process can take a long time, usually 90 days for a scientific meeting, so start this process as soon as possible. Here are some useful links provided by the U.S. Department of State--the primary source for current visa information:

Letters of Invitation

A "Letter of invitation" is supplementary information that explains a visa applicant's intended purpose of travel. U.S. Embassies and Consulates do not have one specific format that these letters must follow. Consular officers look at the totality of an applicant's personal situation in determining visa eligibility. Supporting documents, such as a "letter of invitation", are often useful, but they are not decisive in determining an applicant's visa eligibility. Mere possession of a letter of invitation from a U.S. source will not necessarily guarantee that the holder will receive a visa. (Source: U.S. Department of State)

The deadline to request a letter of invitation has passed.