Voluntary Registry Offsets Database

Voluntary Registry Offsets Database

The database, developed by the Berkeley Carbon Trading Project, contains all carbon offset projects, credit issuances, and credit retirements listed globally by five major voluntary offset project registries—American Carbon Registry (ACR), Architecture for REDD+ Transactions (ART), Climate Action Reserve (CAR), Gold Standard, and Verra (VCS). These five registries generate almost all of the world's voluntary market offsets and also include credits eligible for use under the California / Quebec linked cap-and-trade programs and Washington's cap-and-invest program. 

This database is meant to increase the transparency of the carbon offset market, providing researchers and offset buyers with the ability to better see offset credits and projects in a single database. Dynamic charts allow users to see trends over time, and explore the projects and credits on the market by location, type, registry, etc.

Download the Voluntary Registry Offsets Database v2026-02

The database should automatically download an Excel sheet. If it opens in GoogleSheets we recommend downloading it as an Excel sheet.

Released under Creative Commons Attribution (CC BY 4.0) license. If you wish to use, adapt, or reference this material, please cite as: Barbara K Haya, Pamela Quartson, Tyler Bernard, Aline Abayo, Xinyun Rong, Ivy S So, Micah Elias. (2026). Voluntary Registry Offsets Database v2026-02, Berkeley Carbon Trading Project, University of California, Berkeley. Retrieved from: https://gspp.berkeley.edu/berkeley-carbon-trading-project/offsets-database. By clicking the above link you agree to cite the database according to the Creative Commons Attribution terms. 

 

Partner with the Voluntary Registry Offsets Database 

We are seeking funding partners to continue to maintain this open data resource. If your organization might be interested in partnering with us, please contact Barbara Haya (bhaya@berkeley.edu).

In addition, tax-deductable donations can be made at this link:

Make a Gift

 

Supporting documents
Raw registry files, v2026-02
Database design and calculations details
Scopes & types descriptions
Change log

Version archive:

 

Meet the Voluntary Registry Offsets Database Development Team

 

Sign up for updates

Please provide your email address if you would like to be notified of database updates. We also welcome any suggestions for future updates, would be grateful for data corrections, and will try to answer any questions. You can also use this form to sign up for updates from the Berkeley Carbon Trading Project.

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