Climate Commitment Act

The Climate Commitment Act (or CCA) caps and reduces greenhouse gas emissions from the state’s largest emitting sources and industries, allowing businesses to find the most efficient path to lower carbon emissions.
The Climate Commitment Act (or CCA) caps and reduces greenhouse gas emissions from the state’s largest emitting sources and industries, allowing businesses to find the most efficient path to lower carbon emissions.

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Ecology celebrates Zero Emissions Day!
Today, Sept. 21, 2022, is the last day of summer. What better way to mark the occasion than to celebrate something else this date symbolizes — Zero Emissions Day! 
Meaningful Momentum: CCA Updates for August 2022
The January 2023 launch of the cap-and-invest program is just a few months away! Come find out what we've been up to as we gear up for this historic event.
Meaningful Momentum: CCA updates for June & July 2022
The blog may have skipped a month, but the work never stopped! Come check out our new post covering June and July — and get ready for a double dose of program updates!
Independent studies show new climate change initiatives deliver significant benefits at minimal costs
We're sharing independent economic analyses of the Climate Commitment Act and the Clean Fuel Standard.
Meaningful Momentum: CCA updates for May 2022
On May 17, 2022, we proposed rule language for Chapter 173-446 WAC, which establishes the mechanics of the cap-and-invest program. Learn more about this major milestone and other CCA updates!
Be air aware & prepared
Air quality agencies across the country are highlighting “Air Quality Awareness Week.”
Sea ​​Consciente del aire y esté Preparado
Las agencias de calidad del aire de todo el país están destacando la "Semana de concientización sobre la calidad del aire".
Meaningful Momentum: CCA Updates for April 2022
March was a busy month full of new legislation, community outreach, and plenty of progress. Come find out what the Climate Commitment Act Implementation Group has been up to!
Meaningful Momentum: CCA updates for March 2022
Stay up-to-date with what Ecology is doing to implement the landmark Climate Commitment Act in this new monthly blog series.
The Climate Commitment Act: Washington’s path to carbon-neutrality by 2050
Curious about the Climate Commitment Act and what it means for the fight against climate change? Get an overview of this powerful legislation and what Ecology is doing to implement it.