D.C. Circuit Upholds CSAPR Update Rule
In March 2023, an industry challenge to the EPA’s April 2021 Revised Cross-State Air Pollution Rule (CSAPR) Update Rule was rejected by the D.C. Circuit Court of Appeals. The rule required “power plants in 12 upwind states to reduce nitrogen oxide (NOx), an ozone precursor, emissions such that those states did not inhibit downwind states’ […]