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U.S. EPA Defends Its Major Source Boiler MACT Floor Calculation Methodology

Posted: July 21st, 2014

Those of you following the saga of the Major Source Boiler MACT remand (see our March 17, 2014 and May 22, 2014 blogs for a refresher) will be interested to learn that latest milestone in the process occurred on July 14, 2014. Back in May 2014, the U.S. Environmental Protection Agency (U.S. EPA) was granted 60 days to provide further explanation to the U.S. Court of Appeals for the District of Columbia Circuit on the use of the upper prediction limit (UPL) statistical method to set the emission standards for certain subcategories in the Major Source Boiler MACT rule.

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Risk Assessment: Refinery MACT 1 and 2

Posted: June 30th, 2014

Section 112(f)(2) of the Clean Air Act (CAA) requires the U.S. EPA to determine for source categories subject to Maximum Achievable Control Technology (MACT) standards whether the emission standards provide an ample margin of safety to protect public health…

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CSAPR’s Triumphant Return

Posted: May 16th, 2014

On April 29, 2014 the Supreme Court issued a ruling in EPA v. EME Homer City Generation, L.P. that has reinstated U.S. EPA’s Cross-State Air Pollution Rule (CSAPR).  This is the latest reversal that essentially overturns…

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