Supreme Court's Conservatives Poised To Take Down Decades-Old Precedent

The conservative supermajority on the Supreme Court appeared ready to overturn another major decades-old precedent when it heard arguments on Wednesday in two cases about fishing regulations.

The cases — Relentless Inc. v. Department of Commerce and Loper Bright Enterprises v. Raimondo — challenged regulations imposed by the National Marine Fisheries Service in 2020 that require fishing boats to pay the salary of the federal inspectors who ride on their boats. But the family-owned fishing companies challenging those regulations made a much broader argument: that the court should overturn its own 40-year-old precedent in the case Chevron v. Natural Resources Defense Council and rule that no federal agency can issue any regulation without specific authorization from Congress. That case’s precedent, the lawyers argued, was out of date and no longer necessary.

If the court overturns its ruling in Chevron, agencies would be more reticent to issue regulations where laws passed by Congress are ambiguous. It would also open the door to a flood of litigation over existing regulations. And since Congress lacks the institutional capacity and the calendar space to pass legislation authorizing every agency rule and regulation written under ambiguous legislative language, the courts would be the final arbiter on each regulatory decision.

In recent years, conservative justices have made clear their hostility to theChevron decision. The Supreme Court has largely stopped using it in administrative law cases, instead relying on newer judicial canons to strike down federal regulations, like the “major questions doctrine” in the 2022 case of West Virginia v. Environmental Protection Agency, which assumes that Congress does not delegate