After a few decades of uncertainty and “it’s-alive-it’s-dead-it’s-alive” swings, EPA’s “once in, always in” (OI/AI) policy is once again dead. And this time, it seems very dead.

On June 20, 2025, President Trump signed a Congressional Review Act (CRA) resolution that rejects a September 2024 rule adopted by the Biden EPA that had revived a…

Chevron deference is squarely in the U.S. Supreme Court’s crosshairs. The Court has had on its October docket an appeal in Loper Bright Enterprises v. Raimondo, which challenges the long-standing doctrine. First established by the Court in the 1984 Chevron v. NRDC case, the doctrine imposes a two-part test when courts determine whether to…