Information for International Presenters and Attendees

Certain countries require participants to obtain a visa when attending a conference and may also request a letter from the LDA Conference organizers to verify a participant’s invitation and/or attendance at the event. Some embassies may need to verify that registration fees have been paid in full and may require applicants to appear in person for an interview, causing delays in the application process.

Applicants affected by these procedures are informed that additional screening is needed. Therefore, attendees should apply for a visa no later than three months prior to the conference, but preferably earlier.

If requested, LDA can provide conference participants with a visa assistance letter in the form of a support letter to verify their intent to present and/or attend our conference. If needed, please request as soon as possible using the form below.

Letters of Invitation/Support are provided ONLY to:

  1. Speakers/Presenters who have submitted their registration and paid their conference fees.
  2. Committee members who have submitted their registration and paid their conference fees.
  3. Attendees (who are not from one of the countries embargoed by the US Treasury Department’s Office of Foreign Assets Control) who have submitted their registration and paid their conference fees.
  4. Exhibitors who have paid their exhibitor package fee in full.

Once your registration is submitted, please use the form below and we will process your request for a Letter of Invitation within two weeks.

Important: If your visa request is denied after you have registered for the conference, you are required to supply a copy of the decision letter from the embassy office, in order to get a registration refund minus a $25 USD administrative fee. No exceptions will be made to the requirement of the submission of the embassy letter to be refunded.

If you meet the criteria above and wish to receive a visa invitation letter, please complete the Visa Request Form below:

Additional information can be found on the following websites:

For questions or more information regarding attending LDA’s Conference as an international attendee, please email