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Invitation letter

For those who need a visa to enter the United States.

We can’t wait to see you in Chicago! Due to long United States visa appointment waiting times at American embassies and consulates worldwide, the Society has started issuing Invitation Letters to 2023 Conference attendees.

Note that you do NOT need a visa to enter the United States if you’re a citizen of the European Union or countries in the Visa Waiver Program. You can check the estimated wait time for a nonimmigrant visa interview appointment at a U.S. embassy or consulate here.

To request your Invitation Letter you must be a current member of the Society OR purchase a live ticket, and provide us with an abstract. This statement of no more than 250 words should describe your participation in the 2023 Conference. Please mention any work you plan to submit to the conference program and/or how System Dynamics is related to your current study program or work.

Each person requesting an Invitation Letter must fill out a separate form. All letters will be sent in PDF format to the email address provided. Please include in the notes if a paper letter is required. Allow up to three business days for your Invitation Letter to be processed. If you do not receive your letter within this time period contact us for assistance.

We regard the right to deny any request that doesn’t meet our criteria and to ask for more information regarding the company or affiliation of the attendee to ensure the validity of requests. Please reach out to with any issues.

Invitation Letter Request Form

You need to be a member or purchase a conference ticket to see the form below. Please login.

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