ACS has members worldwide, many of whom travel to the United States for work, collaboration, or meetings. Find information on obtaining a U.S. visa, the visa waiver program for travelers from selected countries, and more.
Attendees from across the globe visit our National Meetings each year. Let us help you plan your international travels!
Obtain a Visa Letter
Meeting Attendees Who Are Not Presenters
Access a general visa letter from your meeting registration confirmation.
If you require a personalized letter, please contact:
Preparing to Attend an ACS Meeting
After you complete the visa application process, use the National Meeting resources to register, plan your travel, reserve your hotel room, and create your schedule. To save money and assure you receive proper accommodations, we strongly recommend that you complete your hotel reservations and register for the meeting through ACS before the deadlines.
All attendees, including speakers and poster presenters, must register for the meeting in order to participate in the technical sessions or the exposition. Attendees must display their badge at all times to be admitted to all official ACS sessions and events.