26th Session of the Conference of the States Parties

29 November–3 December 2021

World Forum, The Hague

The Conference of the States Parties (CSP) oversees the implementation of the Chemical Weapons Convention, promotes the Convention’s objectives, and reviews compliance with the treaty. The Conference is composed of representatives of all Member States of the OPCW, each of which has one vote. The CSP meets annually in The Hague.



Public documents of CSP-26.



Find out essential details including how to get to the conference, where to stay, details about venue facilities, security, and more.

Non-Governmental Organisations

Non-Governmental Organisations

Information for representatives of civil society including how to apply to attend to the Conference, the process for travel support, and more.


OPCW-The Hague Award

Information on the award, how to be nominated, previous winners, and more. 

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