Day of Remembrance for all Victims of Chemical Warfare2026 · Date · History · Messages · Quotes
OPCW C-20/DEC.10
About Day of Remembrance for all Victims of Chemical Warfare
The Day of Remembrance for all Victims of Chemical Warfare is observed on 30 November to honour victims of chemical warfare and reaffirm the international commitment to eliminate chemical weapons.
The observance is closely connected with the Chemical Weapons Convention and the Organisation for the Prohibition of Chemical Weapons, but remembrance content should focus on victims, international law and disarmament rather than technical details of chemical agents or weaponization.
Why Day of Remembrance for all Victims of Chemical Warfare matters
The day combines remembrance with reinforcement of the global norm against chemical weapons. It can explain the Chemical Weapons Convention, victim support and OPCW verification at a high level.
The current 30 November date has an institutional history: the remembrance day was previously observed on 29 April, the anniversary of the Chemical Weapons Convention’s 1997 entry into force.
History of Day of Remembrance for all Victims of Chemical Warfare
In 2005, the OPCW Conference of the States Parties decided that a Day of Remembrance for all Victims of Chemical Warfare would be observed on 29 April, the anniversary of the Chemical Weapons Convention entering into force in 1997.
At its twentieth session in 2015, the Conference separated the two purposes: 29 April became OPCW Day, while the Day of Remembrance for all Victims of Chemical Warfare was moved to 30 November each year or, when appropriate, the first day of the regular Conference session.
How the observance developed
This timeline uses documented milestones from reviewed sources. Missing stages are left out rather than guessed.
OPCW Conference of the States Parties
OPCW Conference report C-10/5, paragraph 23.3
Moved the remembrance observance from 29 April to 30 November (or, when appropriate, the first day of the regular Conference session) beginning in 2016; 29 April became OPCW Day.
OPCW Conference of the States Parties · OPCW decision C-20/DEC.10
What the evidence establishes
Confirmed institutional roles and milestones are shown first. Details that could not be established from the reviewed sources are listed separately below.
4 fields not established in reviewed sources
Later institutional actions
Later recognition, renaming, mergers or date changes are kept separate from original establishment.
How to Observe Day of Remembrance for all Victims of Chemical Warfare
Hold a victim-centred remembrance activity using reputable historical and institutional sources.
Learn the high-level purpose of the Chemical Weapons Convention and the verification role of the OPCW.
Avoid graphic depictions and do not publish technical information that could facilitate harmful chemical use.
Use current OPCW sources for treaty membership, destruction status and active investigations because these can change.
Day of Remembrance for all Victims of Chemical Warfare Facts
The current remembrance date is 30 November.
The Chemical Weapons Convention entered into force on 29 April 1997.
The remembrance day was originally observed on 29 April after a 2005 OPCW decision.
In 2015, the OPCW Conference designated 29 April as OPCW Day and moved the victims-remembrance observance to 30 November.
Day of Remembrance for all Victims of Chemical Warfare Messages
On Day of Remembrance for all Victims of Chemical Warfare, may memory lead to responsibility, empathy and thoughtful action.
May this Day of Remembrance for all Victims of Chemical Warfare honour those at its heart through sincere remembrance rather than empty words.
On Day of Remembrance for all Victims of Chemical Warfare, we remember with dignity and make space for the people, families and communities whose experiences must not be forgotten.
May Day of Remembrance for all Victims of Chemical Warfare be marked with reflection, respect and a renewed commitment to protect human dignity.
Remembering on Day of Remembrance for all Victims of Chemical Warfare means listening carefully, resisting distortion and carrying the lessons of history forward.
Day of Remembrance for all Victims of Chemical Warfare Quotes
“Working together, we can turn remembrance into action, ensuring that future generations no longer live under the threat of chemical weapons.”
Topic and context
What this page does not assume
- Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
- Do not treat the title alone as proof of government recognition or public-holiday status.
- Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
- Remembrance Civic Context Care.
Evidence & sources
Sources used across the guide are gathered here. Labels show how each source supports the page, and contextual references are kept separate from primary evidence.
OPCW — 29 April 2009 remembrance-day history (opens in a new tab)
OPCW — decision C-20/DEC.10 (opens in a new tab)
OPCW — Tenth Session decision history (opens in a new tab)
OPCW — Twentieth Session outcome separating OPCW Day and Remembrance Day (opens in a new tab)
United Nations — Day of Remembrance for all Victims of Chemical Warfare (opens in a new tab)
United Nations — List of International Days and Weeks (opens in a new tab)
United Nations — Observances: who chooses them and how (opens in a new tab)
Understand it, compare it, then explore further
Start with the most common factual questions, then compare closely related observances and explore useful connections.
Frequently asked questions
When is Day of Remembrance for all Victims of Chemical Warfare?
30 November The documented recurrence rule is: 30 November.
Does Day of Remembrance for all Victims of Chemical Warfare fall on the same date every year?
Yes. It uses a fixed annual date unless stronger evidence changes the pattern.
Is Day of Remembrance for all Victims of Chemical Warfare an official public holiday?
The reviewed sources verify it within this scope: OPCW / United Nations / international observance. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when reliable evidence explicitly does so.
Who established or recognizes Day of Remembrance for all Victims of Chemical Warfare?
The reviewed sources identify OPCW Conference of the States Parties as the proclaiming or establishing body.
Is Day of Remembrance for all Victims of Chemical Warfare international or country-specific?
The documented scope is international or global: OPCW / United Nations / international observance. That does not mean every country treats the date as a public holiday or observes it in the same way.
How is this page verified?
The factual information is checked against reviewed sources, including the date pattern, scope and institutional history. This page was checked on 2026-09-05.
Has the Day of Remembrance always been on 30 November?
No. It was previously observed on 29 April. In 2015 the OPCW Conference designated 29 April as OPCW Day and moved the victims-remembrance observance to 30 November.
Why was 29 April historically important?
29 April is the anniversary of the Chemical Weapons Convention entering into force in 1997.
Is this page a source of chemical-agent handling information?
No. It is a remembrance and institutional-history guide, not technical guidance for handling hazardous chemicals or chemical weapons.
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