Keeping the Most Dangerous Weapons out of the Worst Hands

Stimson’s Assistance Support Initiative (ASI) is helping prevent WMD proliferation around the world

When the UN mandated strict new controls on chemical, biological, and nuclear weapons, related materials, and their means of delivery, the goal was ensuring terrorists and others could not use them. But dozens of countries have struggled to keep tabs on these dangerous materials and have found it difficult to navigate the maze of nonproliferation assistance programs that could help.  

Stimson’s unique database matches up countries that need help with those providing assistance. 


Materials used to make weapons of mass destruction are more closely controlled, building state capacity and increasing global security.

From the Program Director

Partnerships in Proliferation Prevention Program Director & Senior Fellow, Dr. Richard Cupitt describes how the tools he’s building make the world a safer place.

  • "We consider very helpful the Stimson assistance support initiative. As you know, during our presidency we stressed the need to improve the assistance mechanisms in the 1540 Committee because there is a communication gap between donors and recipients."

    - a senior government official responsible for chemical and biological nonproliferation in a large European country

  • "We appreciate very much the efforts that are going in the development and maintenance of the 1540 database."

    - a senior government official responsible for nuclear nonproliferation in a former soviet bloc state

What is UN Security Council Resolution 1540?

In 2004, the United Nations Security Council identified the proliferation of nuclear, chemical, and biological weapons, their related material, as well as their means of delivery, as a threat to international security. That resolution, number 1540, mandated that all states must implement measures to prevent the spread of these materials to terrorist groups, other criminals, and state actors attempting to acquire weapons of mass destruction.

A massive challenge for many countries

United Nations Security Council Resolution 1540 requires that all States must have and enforce laws and regulations to help prohibit the spread of weapons of mass destruction within or across their borders, complementing and supporting implementation of other nonproliferation treaties, conventions and other resolutions. However, many States struggle to implement these obligations effectively — they lack the capacity or expertise to control the many different materials and technologies that constitute a proliferation risk.

Consequently, many States have asked for assistance and many states, international governmental, and non-governmental organizations have offered assistance. But until Stimson’s Assistance Support Initiative, there was no comprehensive resource to connect those who need help with who are offering help.

Phase 1: Build it

During Phase I of this project, the ASI team created a public, searchable database of assistance programs and projects that combat the proliferation of chemical, biological, radiological and nuclear (CBRN) weapons and their means of delivery, as well as reach out to those States seeking assistance.  This database serves as a single source of valuable information for States interested in receiving or providing nonproliferation assistance.

Phase 2: Improve it

In the next phase, the team will expand and improve the database and web tool, add and update data on assistance projects and programs, increase the availability of database information to States seeking assistance, provide training on using the tool, and establish an advisory group to conduct regular reviews of the tool’s benefits for CBRN nonproliferation assistance.

CBRN Assistance Programs Catalogued
countries represented
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NGO contributions

The Assistance Support Initiative is a project of the Partnerships for Proliferation Prevention program.

The Partnerships in Proliferation Prevention program supports the 1540 Committee at the United Nations by helping states increase their capacity to make more effective requests for assistance in order to prevent the spread of the world’s most dangerous nuclear, chemical, and biological weapons.

To support this work, contact Sarah Savoy.

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