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    About Us

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  • Our Work

    Our Work

    • What is a Chemical Weapon?
    • Eliminating Chemical Weapons
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  • The Convention

    The Convention

    • Articles

      Articles

      • Preamble
      • Article I – General Obligations
      • Article II – Definitions and Criteria
      • Article III – Declarations
      • Article IV – Chemical Weapons
      • Article V – Chemical Weapons Production Facilities
      • Article VI – Activities Not Prohibited Under this Convention
      • Article VII – National Implementation Measures
      • Article VIII – The Organization
      • Article IX – Consultations, Cooperation and Fact‑Finding
      • Article X – Assistance and Protection Against Chemical Weapons
      • Article XI – Economic and Technological Development
      • Article XII – Measures to Redress a Situation and to Ensure Compliance, including Sanctions
      • Article XIII – Relation to Other International Agreements
      • Article XIV – Settlement of Disputes
      • Article XV – Amendments
      • Article XVI – Duration and Withdrawal
      • Article XVII – Status of the Annexes
      • Article XVIII – Signature
      • Article XIX – Ratification
      • Article XX – Accession
      • Article XXI – Entry Into Force
      • Article XXII – Reservations
      • Article XXIII – Depositary
      • Article XXIV – Authentic Texts
    • Annexes

      Annexes

      • Annex on Chemicals

        Annex on Chemicals

        • Annex on Chemicals
        • Schedule 1
        • Schedule 2
        • Schedule 3
      • Confidentiality Annex
      • 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
        • Part XI – Investigations in cases of Alleged Use of Chemical Weapons
    • Download the Convention
  • Media Centre

    Media Centre

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    • Featured Topics

      Featured Topics

      • Syria and the OPCW
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  • Resources

    Resources

    • Documents

      Documents

      • Annual Reports
      • Conference of States Parties

        Conference of States Parties

        • CSP-29
        • CSP-28
        • More…
      • Executive Council

        Executive Council

        • EC-109
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        • EC-M-66
        • EC-107
        • More…
      • Technical Secretariat

        Technical Secretariat

        • 2025
        • 2024
        • More…
      • Subsidiary Bodies

        Subsidiary Bodies

        • Advisory Board on Education and Outreach
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    • Declarations

      Declarations

      • Declaration Requirements for Scheduled Chemicals
      • Determining Declarable Industrial Facilities
      • Preparing Declarations
      • Secure Information Exchange (SIX)
      • Electronic Declaration Information System (EDIS)
      • Handbook on Chemicals
      • Most Traded Scheduled Chemicals 2022
    • Industry Inspections

      Industry Inspections

      • What to Expect
      • Pre-Inspection Briefing
    • Capacity Building

      Capacity Building

      • National Implementation Programmes

        National Implementation Programmes

        • Implementation Capacity Assessment and Support
        • National Authorities Annual Meeting
        • National Authorities Regional Meetings
        • Training-of-Trainers for Customs
        • General Training Course
        • Declarations and Inspections (Article VI Obligations) Training Course
        • Chemical Industry and National Authorities Meeting
        • Influential Visitors Programme
        • National Authority Mentorship / Partnership Programme
        • Internship Programme for Legal Drafters and National Authorities
        • Stakeholders Forum on National Implementing Legislation
      • Assistance and Protection Programmes

        Assistance and Protection Programmes

        • Training Cycles
        • Table Top Exercises
        • Specialised Training Programmes
        • Training of Trainers Programme
        • Instructor Development and Exchange Programme
        • Article X Workshops
      • International Cooperation Programmes

        International Cooperation Programmes

        • Proficiency Test Training Courses
        • Africa Programme
        • Associate Programme
        • Chemical Safety and Security Management Programme
        • Chemical Safety and Security Management Tools Development Programme
        • Chemical Safety and Security Needs Assessment and Best Practices
        • Responsible Care® Workshops
        • Executive Programme on Integrated Chemicals Management
        • Analytical Skills Development Course
        • Laboratory Twinning Initiative
        • Equipment Exchange Programme
        • Customs Laboratory Training
        • Laboratory Assistance Programme
        • Basic Analytical Chemistry Course for Women
        • Research Project Support Programme
        • Fellowship Programme
        • Conference Support Programme
        • Women in Chemistry
        • 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
    • Science and Technology
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  • Work with Us

    Work with Us

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  • Calendar

Organisation for the Prohibition of Chemical Weapons

News: Partnerships

  • Workshop to Enhance Knowledge on Managing Dual-Use Chemicals Transfer Portuguese-Speaking Countries Enhance Knowledge on Managing Dual-Use Chemicals Transfer 9 December 2024
  • Participants at the OPCW conference held in Port Vila, Vanuatu, from 24 to 26 September 2024 Pacific region strengthens customs control over toxic chemicals at OPCW Conference 17 October 2024
  • OPCW workshop in Lisbon enhances national implementation of the Chemical Weapons Convention OPCW workshop in Lisbon enhances national implementation of the Chemical Weapons Convention 27 March 2024
  • Chemical industry and National Authority representatives discuss experiences of national implementation Chemical industry and National Authority representatives discuss experiences of national implementation 15 October 2021
  • OPCW and University of Wuppertal build Member State capacity in preventing chemical explosions OPCW and University of Wuppertal build Member State capacity in preventing chemical explosions 8 October 2021
  • OPCW Director-General meets Coordinator of Chemical Weapons Convention Coalition OPCW Director-General meets Coordinator of Chemical Weapons Convention Coalition 7 September 2021
  • OPCW strengthens promotion of Responsible Care® initiative in global chemical industry OPCW strengthens promotion of Responsible Care® initiative in global chemical industry 18 June 2021
  • OPCW partners with national authorities, industry and academia to advance safety and security in chemical laboratories OPCW partners with national authorities, industry and academia to advance safety and security in chemical laboratories 10 June 2021
  • Russian Speaking First Responders Develop Expertise in Management of Chemical Emergencies Russian Speaking First Responders Develop Expertise in Management of Chemical Emergencies 18 December 2020
  • OPCW Plant Biomarker Challenge OPCW Launches €200,000 Plant Biomarker Challenge 7 December 2020
  • A participant of a joint OPCW-IFC workshop Workshop Showcases Success of OPCW and International Foundation for Science Research Projects 26 November 2020
  • OPCW Convenes International Experts to Develop Strategy for Greener, Safer, and More Sustainable Chemistry OPCW Convenes International Experts to Develop Strategy for Greener, Safer, and More Sustainable Chemistry 5 August 2020
  • 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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