The California Registry’s parent organization, the Climate Action Reserve, operates the premier carbon offset registry for the North American carbon market. The Reserve built upon the California Registry’s knowledge and expertise in GHG accounting and developed a regulatory-quality program to quantify GHG emissions reductions from offset projects.

As the premier carbon offset registry for the North American carbon market, the Climate Action Reserve works to ensure environmental benefit, integrity and transparency in market-based solutions that reduce greenhouse gas (GHG) emissions. It establishes high quality standards for carbon offset projects, oversees independent third-party verification bodies, issues carbon credits generated from such projects and tracks the transaction of credits over time in a transparent, publicly-accessible system. By facilitating and encouraging the creation of GHG emission reduction projects, the Climate Action Reserve program promotes immediate environmental and health benefits to local communities, allows project developers access to additional revenues and brings credibility and value to the carbon market. The Climate Action Reserve is a private 501c(3) nonprofit organization based in Los Angeles, California. For more information, please visit