International Travel

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.

Obtain a Visa Letter

Meeting Presenters

Download a personalized visa letter, log into MAPS using your ACS ID.

Meeting Attendees Who Are Not Presenters

Access a general visa letter from your meeting registration confirmation. If you require a personalized letter, please contact:

Member & Subscriber Services, American Chemical Society
Phone - U.S. & Canada: 1-800-333-9511
Phone - International: 1-614-447-3776

Convention Data Services
Phone: 1-508-743-0192

Preparing to Attend an ACS Meeting

After you complete the visa application process, use ACS meeting & event 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.

Get Support

Talk to our Meetings team

Contacts for registration, hotel, presenter support or any other questions.

Frequently Asked Questions

Access helpful tips to get the most out of ACS Meetings.