Environment Committee

Clean Air Regulation Resources: Recent Activity of the U.S. Environmental Protection Agency (EPA)

Prepared by NCSL staff for the NCSL Legislative Summit July 2010

July 6, 2010 - EPA proposes a rule that would significantly reduce emissions that contribute to fine particle and ozone pollution in the eastern United States.

Fact Sheet - http://www.epa.gov/airtransport/pdfs/FactsheetTR7-6-10.pdf
Overview Presentation - http://www.epa.gov/nsr/documents/20100413timeline.pdf
Note: The proposed Transport Rule is EPA’s response to the Court remand of Clean Air Interstate Rule (CAIR) and will replace CAIR when final. On December 23, 2008 the D.C. Circuit remanded without vacatur EPA's Clean Air Interstate Rule. The court ruling left CAIR and the CAIR FIPs -- including the CAIR trading programs -- in place until EPA issues a new rule to replace CAIR in accordance with the July 11, 2008 decision. For more background information on CAIR, including access to the Court decision go to: http://www.epa.gov/air/interstateairquality/.

June 2, 2010 - The Environmental Protection Agency strengthened the National Ambient Air Quality Standard for sulfur dioxide. The new 1-hour standard applies only to the primary standard set to protect public health.

Fact Sheet - http://www.epa.gov/air/sulfurdioxide/pdfs/20100602fs.pdf
Overview Presentation - http://www.epa.gov/air/sulfurdioxide/pdfs/20100603presentation.pdf

May 13, 2010 - EPA sets greenhouse gas (GHG) emissions thresholds to define when permits under the New Source Review Prevention Significant Deterioration (PSD) and title V Operating Permit programs are required for new and existing industrial facilities. (This rule is referenced as Final GHG Tailoring Rule.)

Fact Sheet - http://www.epa.gov/nsr/documents/20100413fs.pdf
Timeline Outlining Permitting Steps under the Tailoring Rule - http://www.epa.gov/nsr/documents/20100413timeline.pdf

January 22, 2010 – The Environmental Protection Agency strengthened its national ambient air quality standards (NAAQS) for nitrogen dioxide.

Fact Sheet - http://www.epa.gov/air/nitrogenoxides/pdfs/20100122fs.pdf
Overview Presentation - http://www.epa.gov/air/nitrogenoxides/pdfs/20100124presentation.pdf

January 6, 2010 – The Environmental Protection Agency has proposed to strengthen the national ambient air quality standards for ground-level ozone a primary component of smog.
Fact Sheet - http://www.epa.gov/ozonepollution/pdfs/fs20100106std.pdf