Uncertainty Looms Over EPA's Cross-State Air Pollution Rule

February 24, 2012
Katherine L. Vaccaro and Diana A. Silva
The Legal Intelligencer

In recent years, the Environmental Protection Agency has promulgated a number of regulations affecting the energy sector. Last year was no exception, with the EPA issuing several new rules aimed at curbing air emissions from electric generating units (EGUs). One of the most important--and potentially most costly--of the EPA's recent regulations is the Cross-State Air Pollution Rule (CSAPR), formally titled "Federal Implementation Plans: Interstate Transport of Fine Particulate Matter and Ozone and Correction of SIP Approvals."

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