International cooperation for
effective carbon pricing
and markets
A voluntary platform bringing governments and partners together for peer learning, technical exchange, and the development of high-integrity, transparent and inclusive compliance carbon markets.
Advancing climate ambition and driving
equitable, sustainable development through
carbon pricing and carbon markets.
The Open Coalition on Compliance Carbon Markets is a voluntary platform bringing together governments and partners for international cooperation, peer learning, technical exchange.
It supports the development and effective implementation of high-integrity, transparent and inclusive compliance carbon markets — helping jurisdictions learn from one another while working toward long-term interoperability of approaches.
Open collaboration: a high-ambition platform for Members, Observers and relevant partners
BY COALITION
Interactive Coalition Map
Explore member jurisdictions, compliance market structures, global emissions coverage, and regional participation.
Practical, voluntary cooperation
for high-integrity markets
We support practical, voluntary international cooperation that helps compliance carbon markets deliver effective, transparent and environmentally sound climate action and work towards long term interoperability of approaches.
Exchange
Enable peer learning by sharing experience across different national contexts and carbon-pricing approaches.
Cooperate
Advance practical technical work on carbon pricing and market design, MRV, carbon accounting and high-integrity offsets to explore pathways toward long-term interoperability of approaches for higher ambition
Connect
Strenghten coherence with relevant initiatives, build partnerships and ensure long-term interoperability of the Coalition outputs.
Follow the Coalition’s
milestones
Follow the Coalition's latest milestones, meetings and opportunities for engagement.
COP30, Brazil, Declaration on the Open Coalition for Compliance Carbon Markets
Governments and international climate partners signed the landmark Belém Declaration establishing the Open Coalition for Compliance Carbon Mark...
7th October 2026
Declaration
COP30 - Belém, Brazil
Launch of the Open Coalition for Compliance Carbon Markets
Official global launch ceremony during Florence Climate Week. Announced expanding...
7th October 2026DeclarationCOP30 - Belém, Brazil
High Level Meeting of the OCCCM - Launch of Secretariat & Work Plan
Official global launch ceremony during Florence Climate Week. Announced expanding...
7th October 2026DeclarationCOP30 - Belém, Brazil
COP31 Leaders Meeting & Technical Interoperability Summit
Official global launch ceremony during Florence Climate Week. Announced expanding...
7th October 2026DeclarationCOP30 - Belém, BrazilInterested in the Coalition’s work?
Information on membership, observer participation, upcoming meetings and publications will be added as the Coalition’s arrangements are confirmed.
Would you like to become a member?
Membership is open to governments implementing or developing compliance carbon pricing instruments.
Would you like to become an observer?
Observer status is open to relevant partners supporting the Coalition’s technical work.
Funding disclaimer
