The Supreme Court ruled today that the EPA cannot rewrite law (in this case The Clean Air Act) to accommodate new information without Congressional approval. In this instance, EPA added carbon dioxide to its list of pollutants and most lawsuits raised to challenge this were dismissed. But one made it through and The Supreme Court took it up. This is a good explanation of the issue: The CAA’s [Clean Air Act] Prevention of Significant Deterioration (“PSD”) permitting program was designed to prevent the significant deterioration of air quality in areas that were already complying with the national ambient air quality standards for at least one criteria pollutant. Taking up its charge following the Court's ruling in Mass. v. EPA , EPA introduced new regulations covering greenhouse gas emissions from motor vehicles. EPA then extended the PSD permitting program to cover large stationary sources of greenhouse gas, as required by the plain text of the CAA and a three-decades-old interp...
Former blog for NEI featuring news and commentary on the commercial nuclear energy industry. Head to NEI.org for the latest blog posts.