The U.S. Supreme Court on Monday agreed to consider overturning a key precedent that has been the target of business groups and conservatives who want to weaken the authority of federal regulators.

The justices granted review in Kisor v. Wilkie, a veterans’ benefit case that asks the court to overturn Auer v. Robbins, a 1997 decision that directs courts to defer to an agency’s “reasonable interpretation” of its own ambiguous regulations. The court specifically agreed to consider that issue alone.