Negotiating Article 6.4, the follow-up to the Clean Development Mechanism (CDM)
Progress was also made on the Article 6.4 mechanism, which will succeed the CDM as the UN-approved international mechanism for the voluntary mitigation of greenhouse gas emissions. Approved CDM projects and credits (CERs) can transition to the new Article 6.4 mechanism. As for the new mechanism, two types of carbon credits will emerge: Authorized 6.4ERs and Mitigation Contribution 6.4ERS. A share of these credits will be allocated for purposes of adaptation and mitigation of overall global emissions (through the Overall Mitigation in Global Emissions mechanism). Authorized 6.4ERs can be used as ITMOs, authorized by the Host Country for export to another country to use towards its NDC. Mitigation Contribution 6.4ERs can be used domestically within the Host Country to account towards its NDC and, for example, within domestic compliance carbon markets.
There will be a centralized Article 6.4 registry to track these credits, which will likely be connected to the registries tracking ITMOs as well. While COP28 won't take place in Dubai until November 2023, there are several technical sessions planned in the meantime to advance Article 6.4 developments. It is hoped that in these sessions, concrete rules on the Article 6.4 mechanism will be decided. These decisions should include which project types are eligible, which methodologies can be used, and what the exact registration procedures look like.
Overall, the progress made regarding 6.2 and 6.4 increases environmental integrity in the carbon markets and signals positive momentum to advance climate mitigation efforts globally. Of course, successful implementation will require sufficient capacity building across nations, especially in developing countries, to ensure they can confidently participate. The private sector will also play an essential role in catalyzing the development of Article 6-compliant projects.