The IOs involved in the Partnership work together to exchange information, experiences, and best practices in the areas of development of international instruments, implementation and evaluation of these instruments, stakeholder engagement and coordination across IOs. These efforts aim to support the greater use of international instruments, and strengthen the quality, evidence base and consistency of international rules.

On 13–14 September 2021, the 8th Annual Meeting of IOs, co-hosted by the OECD and the United Nations Commission on International Trade Law (UNCITRAL), brought together 42 IOs.

 
Mathias Cormann, Secretary-General of OECD, launched two key reports of the IO Partnership, that together aim to foster better and more effective international co-operation among governments with the support of a more effective rules-based international order:

• International Regulatory Co-operation provides guidance to governments on co-operating in their rulemaking, particularly through international organisations [1].
• The Compendium of International Organisations’ Practices brings together the experiences of some 50 IOs helping the user to understand international rulemaking practices and governance arrangements, and to improve international instruments through several key principles [2].