If you are traveling to the United States from abroad to attend Sea-Air-Space, there are a few steps you should take to ensure you are legally entering the country. The United States does not require a visa for entry from every country. To see the 38 countries that do not require a visa, review the visa waiver program.

If the United States does require a visa from your country of origin, please complete a U.S. State Department Online Nonimmigration Visa Application. This online application is used by all U.S. embassies. Once you complete the online application, a confirmation will be emailed to you outlining further instructions for an appointment. U.S. immigration services recommend that you contact the U.S. embassy/consulate in your area to find out what other supporting documents you will need to take with you to your appointment.

To register and attend Sea-Air-Space if you do require a visa, first complete the registration process in full for each attendee and exhibitor requiring a letter of invitation.

Once you have registered, you can obtain a letter of invitation by contacting

Check back in 2021 for our deadline to process new requests for a letter of invitation.

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