The New Source Review (NSR) program of the Clean Air Act requires major stationary sources to go through an extensive, time-consuming, and expensive review and permitting process prior to construction. Among other requirements, such sources are required to install the best available control technologies (BACT) to reduce levels of specific regulated pollutants. The NSR program also applies to existing facilities if they are modified in ways that result in significantly increased emissions.

The pace of enforcement actions has decreased in recent years, but more than a decade-and-a-half of NSR enforcement litigation has failed to settle the main legal issues, resulting in contradictory court decisions. This lack of certainty has significant implications to how sources must evaluate compliance going forward.

To learn more, read this article originally published in Natural Gas & Electricity’s September 2018 issue. Felicia Barnes, now an associate at Beveridge & Diamond, was a contributing author.