Pre-Session Arrangements



Each participating State Party is requested to provide the Technical Secretariat with the name and designation of each participating member of its delegation, by submitting one completed Registration Form for each member of the delegation, no later than Monday, 18 June 2018.

Signatory and Observer States should submit a notification to the Secretariat with the names of participants. 






The Letter of Credentials is required only for the Representative of each State Party, and not for additional members of the delegation.

The original Letter of Credentials of each Representative shall for practical reasons be submitted to the Director-General no later than Monday, 18 June 2018.

In order for the original Letter of Credentials to be considered by the Credentials Committee, the latest opportunity to submit the Letter of Credentials is Monday 25 June by 11:00 with the Political Affairs and Protocol Branch at the OPCW Headquarters.






Participants are responsible for obtaining visas, if required, for entry into the Netherlands. Please review visa requirements and exemptions for each country.

Delegates whose country of residence does not have a consular mission of the Netherlands may obtain a visa from the mission of another country that is also party to the Schengen Agreement and that could be issuing visas on behalf of the Netherlands.

Use the contact form for visa assistance.




Check-In and Badge Pick-Up

Participants are urged to check-in and collect their badge as soon as possible after arrival in The Hague. Conference badges will be issued to all registered participants and will be available for pick up starting Friday 22 June. Bring a valid government-issued photo-ID.

  • Friday, 22 June, 10:00 – 18:00, OPCW Headquarters
  • Monday, 25 June, 10:00 – 18:00, OPCW Headquarters

Throughout the Fourth Special Session:

  • Tuesday 26 June, 9:00 – 18:00, World Forum
  • Wednesday 27 June, 9:00 – 18:00, World Forum
  • Thursday, 28 June, 9:00 – 18:00, OPCW Headquarters

Conference badges must be worn visibly at all times in the Conference area and will be required as identification at official OPCW venues other than the World Forum.

Use the contact form for questions regarding the registration of delegates.