Supreme Court likely to discard Chevron

It has been nearly 40 years since the Supreme Court indicated in Chevron v. Natural Resources Defense Council that courts should defer to an agency’s reasonable interpretation of an ambiguous statute. After more than three-and-a-half hours of oral argument on Wednesday, it seemed unlikely that the rule outlined in that case, known as the Chevron doctrine, will survive in its current form. A majority of the justices seemed ready to jettison the doctrine or at the very least significantly limit it.

The court’s ruling could have ripple effects across the federal government, where agencies frequently use highly trained experts to interpret and implement federal laws. Although the doctrine was relatively noncontroversial when it was first introduced in 1984, in recent years conservatives – including some members of the Supreme Court – have called for it to be overruled.

The plea to overturn the Chevron doctrine came to the court in two cases challenging a rule, issued by the National Marine Fisheries Service, that requires the herring industry to bear the costs of observers on fishing boats. Applying Chevron, both the U.S. Court of Appeals for the District of Columbia Circuit and the U.S. Court of Appeals for the 1st Circuit upheld the rule, finding it to be a reasonable interpretation of federal law.