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    • What is a Chemical Weapon?
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  • The Convention

    The Convention

    • Articles

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      • Preamble
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      • Article X – Assistance and Protection Against Chemical Weapons
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      • Article XIII – Relation to Other International Agreements
      • Article XIV – Settlement of Disputes
      • Article XV – Amendments
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      • Article XX – Accession
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    • Annexes

      Annexes

      • Annex on Chemicals

        Annex on Chemicals

        • Annex on Chemicals
        • Schedule 1
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      • Verification Annex

        Verification Annex

        • Part I – Definitions
        • Part II – General Rules of Verification
        • Part III – General Provisions for Verification Measures Pursuant to Articles IV, V and VI, Paragraph 3
        • Part IV(A) – Destruction of Chemical Weapons and Its Verification Pursuant to Article IV
        • Part IV(B) – Old Chemical Weapons and Abandoned Chemical Weapons
        • Part V – Destruction of Chemical Weapons Production Facilities and Its Verification Pursuant to Article V
        • Part VI – Regime for Schedule 1 Chemicals and Facilities Related to such Chemicals
        • Part VII – Regime for Schedule 2 Chemicals and Facilities Related to such Chemicals
        • Part VIII – Regime for Schedule 3 Chemicals and Facilities Related to such Chemicals
        • Part IX – Regime for other Chemical Production Facilities
        • Part X – Challenge Inspections Pursuant to Article IX
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    • Download the Convention
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  • Resources

    Resources

    • Documents

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      • Conference of States Parties

        Conference of States Parties

        • CSP-29
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      • Executive Council

        Executive Council

        • EC-109
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      • Technical Secretariat

        Technical Secretariat

        • 2025
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      • Subsidiary Bodies

        Subsidiary Bodies

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    • Declarations

      Declarations

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      • Determining Declarable Industrial Facilities
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      • Most Traded Scheduled Chemicals 2022
    • Industry Inspections

      Industry Inspections

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    • Capacity Building

      Capacity Building

      • National Implementation Programmes

        National Implementation Programmes

        • Implementation Capacity Assessment and Support
        • National Authorities Annual Meeting
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      • Assistance and Protection Programmes

        Assistance and Protection Programmes

        • Training Cycles
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      • International Cooperation Programmes

        International Cooperation Programmes

        • Proficiency Test Training Courses
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        • Chemical Safety and Security Management Tools Development Programme
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        • Executive Programme on Integrated Chemicals Management
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        • Basic Analytical Chemistry Course for Women
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        • Policy and Diplomacy for Scientists Workshop
        • Peaceful Uses of Chemistry Forum
        • Article XI Workshop
    • National Implementation

      National Implementation

      • National Implementation Framework
      • Model Implementing Legislation
      • Legislation Compendium
    • Assistance and Protection

      Assistance and Protection

      • Medical Aspects of Assistance and Protection Against Chemical Weapons
      • Practical Guide for Medical Management of Chemical Warfare Casualties
      • What to do in a Chemical Emergency
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Organisation for the Prohibition of Chemical Weapons

News: Preventing Re-emergence

  • Hague Award OPCW-The Hague Award 2025 open for nominations 29 April 2025
  • OPCW Working Group on Terrorism conducts first ever Tabletop exercise on chemical terrorism Preventing chemical weapon re‑emergence by countering chemical terrorism 4 March 2024
  • H.E. Ambassador Mika-Markus Leinonen, European Union Liaison Officer to The Hague, and Ambassador Fernando Arias, OPCW Director-General OPCW and European Union sign MoU to strengthen collaboration 21 February 2024
  • OPCW Director-General receives Slovenia’s Minister of Foreign and European Affairs OPCW Director-General receives Slovenia’s Minister of Foreign and European Affairs 16 February 2024
  • European Union Liaison Officer to The Hague, H.E. Ambassador Mika-Markus Leinonen, and Ambassador Fernando Arias, OPCW Director-General European Union contributes €5.35M to strengthen OPCW activities 21 December 2023
  • Ambassador Fernando Arias, Director-General of the OPCW, addresses delegates at the 25th National Authorities meeting National Authorities foster global cooperation to advance implementation of Chemical Weapons Convention 18 December 2023
  • Ambassador Fernando Arias, OPCW Director-General and high-level officials of Algeria attend VIP Day at CHEMEX OPCW Director-General and high-level officials of Algeria attend VIP Day at CHEMEX 12 October 2023
  • France’s Minister for Europe and Foreign Affairs meets OPCW Director-General France’s Minister for Europe and Foreign Affairs meets OPCW Director-General 12 April 2023
  • Latin American and Caribbean experts strengthen prevention of chemical accidents and misuse Latin American and Caribbean experts strengthen prevention of chemical accidents and misuse 27 July 2022
  • OPCW Member States enhance knowledge of CWC declarations and inspections obligations OPCW Member States enhance knowledge of CWC declarations and inspections obligations 11 May 2022
  • OPCW training programme ensures declaration and inspection obligations keep pace with chemical industry growth  OPCW training programme ensures declaration and inspection obligations keep pace with chemical industry growth 25 February 2022
  • OPCW launches new course for law enforcement community OPCW launches new course for law enforcement community 20 December 2021
  • More News
OPCW

OPCW by the Numbers

193 States committed to the Chemical Weapons Convention • 98% of the global population live under the protection of the Convention • 100% of the chemical weapons stockpiles declared by possessor States have been verifiably destroyed • More Numbers

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