• May 1, 2020: : Deadline to ask for an invitation letter
• May 5, 2020: : Deadline to register online

Online registrations are open up to May 5. After this date, it will be possible to register onsite, at the Congress welcome desk, at the Palais des Papes.
During the Congress, payments have to be in Euros (cash, credit card, cheques cashable in France).