The United States Supreme Court has reversed the Court of Appeals for the DC Circuit regarding EPA’s Cross State Air Pollution Rule (CSAPR). Texas was one of many entities who argued that CSAPR was not consistent with Clean Air Act (CAA) requirements, and not based on sound science.

The United States Supreme Court ruled 6-2 that EPA’s interpretation of the “good neighbor rule” in the CAA was reasonable, and remanded the case to the DC Circuit for further proceedings. The DC Circuit will determine if other CSAPR issues need to be addressed, or if it should reinstate CSPAR.

To obtain a copy of the opinion, please click here.