Tag Archives: MATS

D.C. Circuit Leaves US EPA’s Mercury Rule in Place During Remand

On December 15, 2015, the United States Court of Appeals for the District of Columbia rejected challenges by energy industry groups and several states that are seeking to scrap US EPA’s Mercury and Air Toxics Standards (“MATS”) final rule.  White Stallion Energy Center, LLC v. EPA, Case No. 12-1100.  The Court remanded the rule to US EPA for … Continue Reading

US Supreme Court To Consider D.C. Circuit’s Ruling on USEPA’s MATS Rule

The US Supreme Court has granted a petition for certiorari in a case challenging USEPA’s Mercury and Air Toxics Standards (MATS), which set new emissions standards for new and existing coal- and oil-fired power plants.  As reported here in April, the US Court of Appeals for the D.C. Circuit upheld the standards after they were challenged by … Continue Reading

US Power Companies Face Billions in Compliance Costs as D.C. Circuit Upholds MATS Rule

On April 15, 2014, in White Stallion Energy Center v. EPA, the US Court of Appeals for the D.C. Circuit upheld the Mercury and Air Toxics Standards (MATS) promulgated by US EPA on February 16, 2012, which sets new emissions standards for new and existing coal- and oil-fired power plants. EPA estimates that 1,400 power plants will be affected by the … Continue Reading
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