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Plant Health Quadrilaterals Group

The Plant Health Quadrilaterals (Quads) is a strategic coalition composed of the national plant protection organizations of Australia, Canada, New Zealand, and the United States of America. It is not an official treaty organization but rather an informal alliance and venue for cooperation among the plant health authorities of the Quads countries. It enables our respective plant health and biosecurity officials to address plant health and biosecurity issues, particularly as they affect international trade of plants, plant products, and other regulated articles.

Quads Strategic Vision

We contribute leadership through our efforts to anticipate and respond to global plant health challenges and opportunities. We collaborate to influence the work of the International Plant Protection Convention (IPPC), to better protect our plant resource base and environment from pest threats, and to facilitate safe international trade in plants and plant products.

Quads Mission

To provide a collaborative forum for developing and implementing strategies to enhance the work of the IPPC. We identify and build consensus on key IPPC issues and priorities, and we drive the development, adoption, and implementation of international standards acceptable to the like-minded member countries.

The Quads shares information and identifies and pursues collaborative work on issues of mutual concern in areas such as plant quarantine policy and operations, emergency preparedness and response, control of established plant pests, international standards, capacity building, and global intelligence gathering.

How does the Quads Benefit its Member Countries?

The Quads framework:

  • Enables senior plant health officials to progress issues and strategic initiatives related to plant health, especially as they affect international trade, to improve plant health, and trade outcomes for each of our countries.
  • Creates the necessary environment to advance politically sensitive or difficult issues by working collectively on responses to these issues where our interests are aligned.
  • Establishes new, and improves existing, relationships with other countries to better serve our respective domestic industry and stakeholder groups.
  • Provides new efficiencies and cost effective approaches to addressing plant pest issues, and enhance understanding of each other’s strategic approach to plant health issues.
  • Strengthens relationships among participating countries to facilitate the development of common positions on areas of interest to support our shared trade and export goals.

What are the Challenges Facing Quads Countries?

  • Have a positive influence on the international plant health community and promote enhanced implementation of international standards.
  • Capitalize on trade opportunities.
  • Engage and influence emerging economies in order to promote science- and risk-based regulatory policies among these new global players.
  • Work smarter and in closer collaboration so we can fulfill our mandate with fewer resources, and apply innovative, practical solutions more rapidly.

For more information about the Plant Health Quadrilaterals Group, contact Stephanie Dubon, Deputy Technical Director of International Phytosanitary Standards, at

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