American Carbon Registry (ACR)
A leading carbon offset program in the U.S., focused on science-based methodologies.
What is American Carbon Registry (ACR)?
The American Carbon Registry (ACR) is a leading voluntary carbon offset program in the United States, operating as a non-profit enterprise of Winrock International. It develops rigorous, science-based methodologies for quantifying, verifying, and registering carbon offsets across various sectors, including forestry, agriculture, and industrial gases.
Why is American Carbon Registry (ACR) important?
ACR is important because it provides a credible and transparent framework for generating high-quality carbon credits in the U.S. and beyond. Its focus on robust scientific methodologies and independent verification helps ensure environmental integrity, building confidence for buyers and facilitating investment in climate solutions.
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Frequently asked questions
ACR registers a diverse portfolio of project types, including improved forest management, afforestation/reforestation, avoided conversion, grassland management, nitrous oxide abatement in agriculture, industrial process improvements, and carbon capture and storage.
Yes, in addition to the voluntary market, ACR is recognized in several compliance markets, such as California's Cap-and-Trade program for certain project types.
ACR ensures quality through the development of sector-specific methodologies, requirements for third-party validation and verification, transparent public listing of projects, and measures to address permanence and leakage.