Clean Air Markets

Proposed Cross-State Air Pollution Update Rule

Rule Summary

On November 16, 2015, the EPA proposed an update to the Cross-State Air Pollution Rule (CSAPR) for the 2008 ozone National Ambient Air Quality Standards (NAAQS) by issuing the proposed CSAPR Update Rule.  Starting in 2017, this proposal would reduce summertime nitrogen oxides (NOX) emissions from power plants in 23 states in the eastern U.S., providing up to $1.2 billion in health benefits to millions of Americans.

EPA held a public hearing on December 17, 2015 and the public comment period for the proposal ended on February 1, 2016. The agency is currently reviewing the comments we received on the proposal and will issue a final rule later this summer.

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Rule History

November 16, 2015 - Proposed Cross-State Air Pollution Update Rule

The EPA proposed Federal Implementation Plans (FIPs) in the CSAPR Update Rule to address air quality impacts of the interstate transport of ozone air pollution in the eastern United States.

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Additional Resources

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