UN Climate Change News, 23 January 2026 - Development has begun on the digital infrastructure for the registry system under Article 6 of the Paris Agreement. This registry system will record, track, and verify the transfer of mitigation outcomes between countries, ensuring transparency and accountability in how countries cooperate to reduce emissions.
The work follows the entry into force of a multiyear implementation contract to build a coordinated suite of Article 6 registries and the services needed to connect them.
Awarded through a competitive procurement process led by the United Nations Development Programme (UNDP) in close collaboration with the UNFCCC, the contract tasks the service provider with developing systems that will support transparent, robust and secure accounting for participating countries.
Core components under development
The service provider will deliver four key products:
- Minimum Viable Product: A foundational system that demonstrates essential registry functions and enables early pilot-testing with participating countries.
- Article 6.2 International Registry: The central platform to track, authorize, and report internationally transferred mitigation outcomes (ITMOs).
- Paris Agreement Crediting Mechanism Registry: A dedicated registry enabling issuance, transfer, cancellation, and tracking of A6.4 Emission Reductions.
- Interoperability Hub: A communication layer based on common standards that ensures consistent, secure data exchange between national and international systems. This is an essential component enabling transparency, integrity, and compatibility across global carbon market infrastructure.
Strengthening transparency and market readiness
Together, these systems form the backbone of future international carbon markets cooperation under the Paris Agreement supporting high-integrity emissions accounting and building confidence in cross-border mitigation transfers.
The development of the registry infrastructure responds to the mandate from the Parties to the Paris Agreement (CMA) to establish and operationalize the Article 6 digital ecosystem.
Once completed, the systems will be deployed within UNFCCC-hosted environments and aligned with the technical, security, and performance standards required for global scale environmental market operations.
