The United States Environmental Protection Agency (“EPA”) issued a pre-publication version of a proposed rule that would remove affirmative defense provisions from certain Clean Air Act New Source Performance Standards...more
On July 21, 2023, the US Environmental Protection Agency (EPA) issued a long-awaited final rule that will make it difficult for sources to continue to rely on an “emergency” to avoid liability for permit violations under...more
In response to a petition for final rule-making filed by the Sierra Club, the U.S. Environmental Protection Agency issued on May 22, 2015, its final action requiring 36 states to revise their state implementation plans...more