MJB&A Issue Brief - D.C Circuit Upholds Mercury and Air Toxics Standards (MATS) for Existing Sources

On April 15, 2014, the D.C. Circuit denied all petitions for review of the National Emission Standards for Hazardous Air Pollutants (NESHAPs) for existing coal- and oil-fired electric generating units (EGUs) issued under Section 112 of the Clean Air Act. The court dismissed for lack of standing the petition from Julander Energy, which sought consideration of fuel-switching to natural gas as a beyond-the-floor control technology. All other ripe petitions were denied (a few issues were not decided at this time due to pending petitions for review).

This brief summarizes the decision.