On December 27, 2018, the Environmental Protection Agency (EPA or Agency) issued a rulemaking package, National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units – Reconsideration of Supplemental Finding and Residual Risk and Technology Review, which would impact affected power plants in four key ways. First, the proposal reconsiders the 2016 Supplemental Finding justifying the costs associated with the Mercury and Air Toxics Standards (MATS). Second, EPA is proposing to keep the MATS in place but is requesting comment on whether the standards should be rescinded. Third, EPA is proposing the Agency’s risk and technology review (RTR) for covered power plants and concluding that no new...
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