Advertisement On April 29, 2014, the U.S. Supreme Court issued a decision upholding EPA’s Cross-State Air Pollution Rule (also known as the Transport Rule). The Transport Rule restricts air emissions from upwind states that in EPA’s judgment contribute significantly to nonattainment of the National Ambient Air Quality Standards(NAAQS) in downwind states. According to EPA’s regulatory impact analysis, the Rule is … Continue reading Which Way is the Wind Blowing? U.S. Supreme Court Upholds EPA’s Cross-State Air Pollution Rule