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Mandatory Greenhouse Gas Emissions Reporting

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Categories

Topics
Climate Change, Air Pollution
Division
Industrial Strategies Division

Reporting of greenhouse gas (GHG) emissions by major sources is required by the California Global Warming Solutions Act of 2006 (AB 32).
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Reported Data

2022 GHG emissions data for entities subject to MRR reporting is now available on the Reported Data webpage.

Reported Data
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Key Dates & Activities
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Reporting Guidance
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Electric Power Entities

Popular Resources

Verification of GHG Emissions Data Reports

The Regulation for the Mandatory Reporting of Greenhouse Gas Emissions (reporting regulation or MRR) requires the independent verification of greenhouse gas (GHG) emissions data reports. Verification questions may be sent to ghgverify@arb.ca.gov.  

Reported GHG Emissions Data

GHG emissions bar chart
Annual Summary of Reported GHG
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Pollution Mapping Tool
GHG Inventory line graph
California Greenhouse Gas Emission Inventory