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The letter will be sent to you once we have received full payment for your registration. Please note that the invitation letter does not financially obligate the conference organizers in any way. The invitation letter does not guarantee an entry visa to France. I need a letter of invitation for my visa application* Yes No Your profile Please indicate your age range:* <35 Between 35-50 Between 51-65 Over 65 Could you tell us more about your profile?* Consultant Company/Business Manager Scientist Nonprofit / NGO Ministry/Regional Authority Student Retired Professional Other Is this your first time participating in an ICID International Congress?* Yes No How did you hear about the ICID 2026 international congress?* Previously attended Website Social Media By word of mouth (friend or colleague) Professional press Other Your transportation Transportation is a major contributor to greenhouse gas emissions. We encourage attendees to prioritize train travel or carpooling over flying whenever possible. Travel smart by proposing your trip to other participants on our carpooling platform Please indicate your departure city / country Please indicate your mode of transport to get to the conference Train Electric car Car Bus Motorcycle Plane Public transport Bike Walking distance Other How many nights are you planning to stay in a hotel in Marseille?How many nights are you planning to stay in a hotel in Marseille? I do not know yet I will not stay at a hotel 1 2 3 4 5 6 More than 6 Accessibility Do you have any accessibility requirements to fully participate in this event? Please select all that apply: Wheelchair accessibility Assistive listening device Dietary restrictions or food allergies (answer next question to specify) Personal care assistant Other (please specify below) No, I do not have any accessibility requirements Please specify if you need assistance Food waste management Please let us know if you have specific requirements:* No restriction I would like vegetarian food I need gluten free food I need lactose free food To avoid food waste as much as possible, please let us know if you plan to take part in the following events (included in the registration fees): Lunch on Monday 12 October* Yes No Lunch on Tuesday 13 October* Yes No Lunch on Wednesday 14 October* Yes No Lunch on Thursday 15 October (only if you attend the ICID meetings)* Yes No Lunch on Friday 16 October (only if you attend the ICID meetings)* Yes No Lunch on Saturday 17 October (only if you attend the ICID meetings)* Yes No