Foreign Visitors Hosted by Invitation

Hosting visitors at the university is a common and collaborative occurrence. However, these activities require export control considerations when the visitor is neither a US Citizen nor a legal permanent resident/green card holder. If you plan to host an individual or group from outside the US to visit the Purdue campus or facilities; please follow these steps to ensure that the visit is in compliance with export control regulations. The measures outlined below should start prior to issuance of an invitation letter or other supporting visa paperwork.

Best Practices for to Ensure Export Control Compliance when Writing an Invitation Letter

  • Before issuance of an invitation letter, the host or host department’s International Students and Scholars (ISS) liaison must be certain that a restricted party screening has been conducted. Do not issue invitation letters before this step. To find your ISS departmental liaison, see this link.
  • Following restricted party screening, invitation letters should be vetted and/or signed by the Department Head or Dean in the department of the prospective host.
  • The letter must contain:
    • The full name of: the proposed visitor; the visitor’s home institution; and the Purdue University host and department
    • A brief description about the visitor’s anticipated work assignment
    • A statement that the appointment is contingent on the receipt of a valid visa from the US government.
    • Dates of anticipated arrival and departure. Do not extend the invitation beyond the time frame that the visitor will be in your direct supervision or responsibility.

Best Practices to Ensure Export Control Compliance During Visits to Campus

  • Do not assume that a visitor’s visa is an authorization for all activities. A deemed export can occur through discussions, tours, or visual inspection of controlled US technology at any time at any location in the world (including inside the US).
  • Some activities may be limited or not permissible due to export control laws. It is the host’s responsibility to contact before the visit to establish guidelines and/or a plan in the event that the visit will involve activities, data, or items of the following nature:
    • Data that are not intended for the public domain (i.e. publication, seminars, etc.);
    • Data with military or space applications;
    • Projects where publication is not allowable (i.e. for proprietary, government controls or other agreements);
    • Projects where participation is limited by citizenship through a contract or other means;
    • Technical data that are acquired through a non-disclosure/confidentiality agreement;
    • Projects/areas/items associated with a technology control plan;
    • Tours or visits in areas with controlled equipment or data. Such visits must not allow visual inspections or photographs that would allow a person to develop, produce, or have high level assembly knowledge about controlled equipment. If you have questions about an area of campus, or piece of equipment, please contact before the visit takes place.

Furthermore, the FBI provides a general guidance brochure for US companies and universities at this link.

For visa assistance, please contact your departmental liaison for assistance.

Please contact with any questions related to export controls.

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