International Travel: Visa Information & Letter of Invitation

We look forward to welcoming our community from around the globe to Southern California. Our goal is to create a smooth and seamless travel process for you. Travel regulations to the United States have eased in recent months. For the latest information, please visit CDC's travel updates.

Please note: If you are traveling from a country that is part of the Visa Waiver Program, you are not required to request a letter of invitation. Instead, register for your Electronic System for Travel Authorization (ESTA) approval prior to travel.

Not sure if you will require a visa from your country of origin? Use the U.S. Department of State's handy visa wizard to determine what you will need.


Please read the instructions below to request a visa letter of invitation.

Request your Letter of Invitation

Follow these steps to request a letter of invitation:

Request your letter of invitation as soon as possible, since the visa application process can take longer than expected. Once your request has been submitted, you will receive an emailed letter of invitation within 2–5 business days to the email address provided. Please note: NAMM does not send printed copies of your letter of invitation by mail or post.

Passport must be valid for six months beyond the period of your stay in the US. See list of countries exempt from the six-month requirement.

Visa Application Instructions
  1. Schedule an appointment for a visa interview at the U.S. Embassy nearest you. For more information, please visit the U.S. Visa Information page.
  2. Be prepared for your interview. Take the letter of invitation to your appointment along with your current valid passport or government identification, evidence that you have funds to cover expenses in the United States and evidence of compelling social and economic ties to your home country. The Consular Officers who interview are looking for evidence that you will return to your country.
  3. Be specific about the dates of your travel to and from the United States. If you have already secured your hotel and plane tickets, provide your round-trip travel itinerary and confirmation of your hotel reservation with your application.
  4. Complete all official documents and answer all questions completely. If the answer is no, write “no” or “none.”
  5. Provide any materials or correspondence from NAMM to prove it is a legitimate business event. An example would be a confirmation of your badge registration to attend The NAMM Show.
  6. Be prepared for the visa fees and accepted methods of payment by the U.S. Embassy.

Please be aware that employees of NAMM cannot assist you with the visa interview process, but please inform NAMM of your situation. NAMM can only provide a letter of invitation (LOI), so please reach out to your local embassy or consulate for more information and to process your application.

Member and General Attendee Qualifications

To qualify as a NAMM Member attending the 2023 NAMM Show, your NAMM membership must be valid through April 15, 2023.

To qualify as a General Attendee attending the 2023 NAMM Show, you must be affiliated with at least one of the following categories: Pro audio engineer, live sound professional, entertainment technology professional, theme park operator, touring and staging professional, venue and studio representative, houses of worship representative, educator/instructor, student, buyer of music, sound and event technology products.

Registration for the 2023 NAMM Show opens for NAMM Members on October 19 and for General Attendees on October 26.

Frequently Asked Questions

How do I know if I need a visa?

Countries that participate in the U.S. Department of State Visa Waiver Program may not require a visa. Visit the page to check if your country qualifies.

Why do I need a letter of invitation?

If you are traveling from a country that requires a visa to travel to the United States, you may request a letter of invitation from NAMM. This letter will inform the U.S. Embassy that you will be in the United States to conduct business at The NAMM Show and will return to your home country when the show is over.

What if my visa request is denied?

If you are denied, reapply immediately and provide any requested information at your next interview. If you are delayed or denied again, please submit an inquiry about your case by e-mail to or call 202-663-3198.