The D.C. Circuit vacated EPA's denial of New York's petition concerning cross-border pollution from nine upwind states. The state had asked EPA to find that power-generating and other facilities in the nine states were violating the CAA's "good neighbor" provision by producing emissions that contrib...

The D.C. Circuit denied petitions to review FERC's order prohibiting states from barring electric storage resources (ESRs) on their distribution and retail systems from participating in federal markets. Utility groups argued that FERC exceeded its jurisdiction under the Federal Power Act by barring ...

The D.C. Circuit granted in part and denied in part petitions to review EPA's attainment designations for its 2015 ozone NAAQS. Environmental groups, municipal governments, and the state of Illinois argued that the Agency failed to follow its own scientific and technical record when it decided that ...