Cross-State Air Pollution Rule
The Cross-State Air Pollution Rule (CSAPR) is a rule by the United States Environmental Protection Agency (EPA) that requires member states of the United States to reduce power plant emissions that contribute to ozone and/or fine particle pollution in other states.[1][2] The EPA describes this rule as one that "protects the health of millions of Americans by helping states reduce air pollution and attain clean air standards."[1]
Details
[edit | edit source]The CSAPR requires 23 United States states to reduce their annual emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) to help downwind states attain the 24-hour National Ambient Air Quality Standards, and 25 states to reduce ozone season nitrogen oxide emissions to help downwind states attain the 8-hour NAAQS.[2]
The states that are required to reduce sulfur dioxide emissions are divided into two groups, both of which must reduce their emissions in 2012. Group 1 is required to make additional emissions reductions by 2014.[2]
History
[edit | edit source]| Date | Event |
|---|---|
| July 6, 2011 | The EPA finalized the rule, replacing the EPA's earlier Clean Air Interstate Rule (CAIR) from 2005.[1] |
| December 15, 2011 | The EPA finalized a supplemental rulemaking to require five states - Iowa, Michigan, Missouri, Oklahoma, and Wisconsin - to make summertime NOx reductions under the CSAPR ozone season control program.[1] |
| February 7, 2012 | The EPA issued a minor adjustment to the rule.[1] |
| June 5, 2012 | The EPA issued another minor adjustment to the rule.[1] |
| August 21, 2012 | A D.C. Circuit Court of Appeals overturned the CSAPR.[3][4][5] |
| April 29, 2014 | The United States Supreme Court reversed the decision of the D. C. Circuit Court of Appeals.[5][6][7][8] |
| June 26, 2014 | The United States federal government files its motion with the D. C. Circuit Court of Appeals to lift its stay. Until the motion is decided, the earlier law (CAIR) remains in effect.[5] |
| October 23, 2014 | The U.S. Court of Appeals for the D.C. Circuit ordered that EPA's motion to lift the stay of the Cross-State Air Pollution Rule be granted.[9] |
| January 1, 2015 | CSAPR Phase 1 implementation began.[10] |
Reception
[edit | edit source]The CSAPR has been defended by environmental groups such as the Environmental Defense Fund,[11] progressive think tanks such as ThinkProgress,[12] and publications such as the Huffington Post.[13]
References
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- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Overview of the Cross-State Air Pollution Rule (CSAPR) United States Environmental Protection Agency.. Retrieved 13 October 2020.
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