The Verified Carbon Standard (VCS) Program is managed by Verra with the support of the VCS Program Advisory Group. The Advisory Group is a multi-stakeholder body that helps ensure that the VCS Program serves its users in an effective and efficient manner, and drives practical and robust solutions to mitigating climate change.


Verra is committed to making certain that the VCS Program reflects the latest scientific research and is continually improved with respect to the consistency and accuracy of GHG emissions accounting. We follow ISEAL’s Codes of Good Practice in the ongoing development of the VCS Program.

Visit the Governance and Development: Previous Versions page to view previous versions of the VCS Program.

Previous versions of the VCS Program can be found here.

The current version, VCS Version 4, was developed through a consultative process comprising two 60-day public consultations and engagement with many individual stakeholders, including project developers, methodology developers, validation/verification bodies, trade associations, NGOs, and other market participants.

Issues Currently Under Development

Between major version updates, Verra considers updates to the VCS Program documents intended to strengthen or expand the scope of the program and to ensure that projects deliver real, permanent, and additional emission reductions and removals. Issues currently under consideration are listed below.

Previous Version 4 Updates