Tag: MATS


Proposed Cross-State Air Pollution Rule Update: Impacts to Kentucky

The Environmental Protection Agency has proposed tougher new limits on air emissions from coal-fired electrical generating units (EGUs) in nearly two dozen states that emit air pollution downwind to neighboring states along interstate border regions. On November 16, 2015, the EPA proposed an update to the Cross-State Air Pollution Rule (CSAPR) for the 2008 ozone […]


US Supreme Court Invalidates MATS for Power Plants

On Monday, June 29, 2015,  the Supreme Court of the United States (SCOTUS) ruled 5-4 against the Environmental Protection Agency’s (EPA) implementation of Mercury and Air Toxics Standards (“MATS” /40 CFR Part 63 Subpart UUUUU ) rule that was promulgated in 2012 for electric utility steam generating utilities (EGUs). SCOTUS said the EPA incorrectly interpreted […]