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States that are Affected by the Cross-State Air Pollution Rule (CSAPR)

View this table as a map.

State Required to Reduce Emissions of NOX during the Ozone Season (1997 Ozone NAAQS) Required to Reduce Emissions of NOX during the Ozone Season (2008 Ozone NAAQS) Required to Reduce Annual Emissions of SO2 and NOX (1997 Annual PM2.5 NAAQS) Required to Reduce Annual Emissions of SO2 and NOX (2006 24-Hour PM2.5 NAAQS) *SO2 Group
States that are affected by the Cross-State Air Pollution Rule (CSAPR)
Alabama   X X X 2
Arkansas   X      
Georgia X   X X 2
Illinois   X X X 1
Indiana   X X X 1
Iowa   X X X 1
Kansas   X   X 2
Kentucky   X X X 1
Lousiana   X      
Maryland   X X X 1
Michigan   X X X 1
Minnesota       X 2
Mississippi   X      
Missouri   X X X 1
Nebraska       X 2
New Jersey   X   X 1
New York   X X X 1
North Carolina     X X 1
Ohio   X X X 1
Oklahoma   X      
Pennsylvania   X X X 1
South Carolina     X   2
Tennessee   X X X 1
Texas   X X   2
Virgina   X   X 1
West Virginia   X X X 1
Wisconsin   X X X 1
Number of States 1 22 18 21  

* The final CSAPR divides the states required to reduce SO2 into two groups. Both groups must reduce their SO2 emissions beginning in Phase I. Group 1 states must make significant additional reductions in SO2 emissions for Phase II in order to eliminate their significant contribution to air quality problems in downwind areas.