Congress Dates

October 20-23, 2025

Important Dates for Your Calendar

  • April 1, 2025 – Abstract Submission Deadline
  • July 23, 2025 – Early Registration Deadline
  • Aug 19, 2025 – Late Breaking Abstract Submission Deadline
  • October 20-23, 2025 – SIOP 2025 Congress

Format

The congress will be held in-person, and all sessions will be recorded and made available on-demand (no live broadcasting).

Venue

RAI Amsterdam

Address: Europaplein 24, 1078 GZ Amsterdam, Netherlands

Website: https://www.rai.nl/en

Travel Discount

We are pleased to announce that attendees to the SIOP Congress 2025 can benefit from a 10% discount on Air France or KLM airfare. Full details on how to claim the discount are available here.

Visas

Visa processes and customs

Visa regulations depend on your nationality and country of origin. We suggest you contact your local Dutch Embassy or Consulate for full and official instructions on the specific visa regulations and application procedure that apply to you.

It is the responsibility of the participant to obtain a visa if required.

How to Enter the Netherlands

Learn about the most common types of visas for business, student or travel you may need when coming to or traveling through the Netherlands, plus review what other documents you need to enter the Netherlands.

Which visa do I need to travel to the Netherlands? Find out more here.

Upon request, the SIOP 2025 Congress Secretariat will send personal invitation letters to participants.

This invitation is prepared solely for the purpose of visa applications and is not a commitment on the part of the organizers to provide any financial support or confirmation of inclusion in the Scientific Programme

Liability and Insurance

The Congress Secretariat and Organizer’s cannot accept liability for personal accidents or loss of or damage to private property of participants. Participants are advised to take out their own personal travel and health insurance for their trip.

Weather

October in the Netherlands marks the heart of autumn, bringing cool, crisp weather and vibrant fall foliage. Temperatures typically range between 8°C to 15°C (46°F to 59°F), with occasional rain showers, so layering is key for comfort. The season offers a mix of sunny, overcast, and breezy days, creating a cozy atmosphere perfect for exploring Amsterdam’s charming streets and canals. Don’t forget to pack an umbrella or a light raincoat to stay prepared!

Currency

The Euro (sign: €; code: EUR) is the currency of the Netherlands. The Euro has the symbol “€” and is subdivided into 100 cents, symbol “c”. International credit cards, such as American Express, Diners Club, MasterCard, and Visa credit cards, are all widely accepted in the Netherlands. Exchange offices and ATM machines are available throughout the Netherlands.

The official currency of the congress is the Euro (€).

For exchange rates: www.xe.com

​Time

Amsterdam, like the rest of the Netherlands, follows Central European Time (CET, GMT+01:00) during the winter months and Central European Summer Time (CEST, GMT+02:00) during daylight saving time. This time zone applies throughout the year, with the clocks shifting forward one hour in the last Sunday of March and back one hour in the last Sunday of October.

Safety and Security

Follow the same rules of safety that you follow while travelling anywhere else with respect to using hotel safe deposit boxes and keeping travel documents safe.

  • When in public places, keep them in your hotel or with you all the time when moving about.
  • Always carry the hotel address with you when you leave the hotel.
  • Do not leave bags/mobile phones unattended.

​Language

The official language of the SIOP 2025 Congress is English.

The official language of the Netherlands is Dutch. It is spoken by the vast majority of the population and used in government, education, and media. Additionally, Frisian is an officially recognized regional language spoken in Friesland, a province in the northern part of the country.

Many Dutch people are also fluent in English, which is widely spoken, especially in larger cities like Amsterdam. Other languages, such as German and French, are often understood by people, especially in business and academic contexts, due to the country’s proximity to these nations and the emphasis on foreign language education.

Clothing

During the entire meeting, attire will be informal.

Electricity 

In the Netherlands, the standard electricity supply is 230V with a frequency of 50Hz. The country uses Type C and Type F electrical plugs, which are two-pronged, round-pin plugs commonly used across Europe.

If you are traveling from a country with a different plug type or voltage, you may need a plug adapter or voltage converter to ensure compatibility with your devices.

Useful Telephone Numbers

The emergency telephone number in Amsterdam, as well as throughout the Netherlands, is 112. This number can be dialed for police, fire, medical emergencies, or any other urgent assistance. It is free of charge and can be used from both mobile and landline phones.

Scholarships/Young Investigator Award

The SIOP Scientific Committee jointly with our SIOP Scientific Programme Advisory WG has finished the review and scoring of all submitted abstracts. The abstract selection and allocation (oral and poster presentations) will be taking place early June 2025. We will announce the final selection of scholarship (incl. nursing) and/or Young Investigator Award winners by end of June 2025 by email. We do know that for many of you in-person attendance to the congress depends on receiving a scholarship (incl. nursing) and/or Young Investigator Award. Applicants are responsible for obtaining their own visas and travel documents. Should you have any questions regarding your scholarship/ Young Investigator Award application, please contact info@siop-online.org

CME Credits

As in previous SIOP Congress, an application will be made to the European Accreditation Council for Continuing Medical Education (EACCME). The EACCME is an Institution of the European Union of Medical Specialists (UEMS).

Family/Nursing Room

A complimentary lounge area will offer comfortable seating, baby-changing facilities and convenient access to power. (please inquire at the registration desk for more detailed information) Parents or adult guardians must always accompany children in the family lounge.

Please note that childcare is not provided.

Covid-19 and Traveling to Amsterdam

As of November 2024, all COVID-19-related travel restrictions for the Netherlands have been lifted, meaning you can visit Amsterdam and other cities without the need for testing, quarantine, or proof of vaccination​. Masks are no longer required in public spaces or on public transport​.

However, it’s always a good idea to check for any last-minute changes closer to your travel date, particularly if you are traveling from countries with specific entry requirements.

Consent to Use of Images 

Registration and attendance at the SIOP Annual Congress Conference constitute an agreement by the registrant to the use of the attendees’ image or voice in photograph, video, audio, electronic or other reproduction formats, at such event for distribution on SIOP’s congress and society website or in print, digital or other promotional materials, without your express written or verbal permission.

Code of Conduct 

SIOP is committed to providing a safe, productive, and welcoming environment for all meeting participants and staff. All participants, including, but not limited to, attendees, speakers, volunteers, exhibitors/sponsors, staff members, service providers, and all others are expected to abide by this Meeting Code of Conduct.

SIOP has zero-tolerance for any form of discrimination or harassment, including but not limited to sexual harassment by participants or our staff at our meetings. If you experience harassment or hear of any incidents of unacceptable behaviour, SIOP asks that you contact our office by calling +41 79 687 9163 so we can take the appropriate action.

Unacceptable Behaviour is defined as:

  • Harassment, intimidation, or discrimination in any form.
  • Verbal abuse of any attendee, speaker, volunteer, staff member, service provider, or other meeting guest.
  • Examples of verbal abuse include, but are not limited to, verbal comments related to gender, sexual orientation, disability, physical appearance, body size, race, religion, national origin, inappropriate use of nudity and/or sexual images in public spaces or in presentations, or threatening or stalking any attendee, speaker, volunteer, staff member, service provider, or other meeting guest.
  • Disruption of presentations during sessions or at other events organized by SIOP throughout the congress. All participants must comply with the instructions of the moderator and any congress staff.
  • Presentations, postings, and messages should not contain promotional materials, special offers, job offers, product announcements, or solicitation for services. SIOP reserves the right to remove such messages and potentially ban sources of those solicitations.
  • Participants should not take photos of slides or record any session on their mobile devices during the congress.

SIOP reserves the right to take any action deemed necessary and appropriate, including immediate removal from the meeting without warning or refund, in response to any incident of unacceptable behavior.

SIOP 2025 Congress Secretariat

1-3 Rue de Chantepoulet

PO Box 1726

CH-1211 Geneva 1, Switzerland

Tel: + 41 22 908 0488
Fax: + 41 22 732 2850

Email: siop@kenes.com