Date

By law, the U.S. Department of Energy (DOE) must review each national appliance standard every six years and publish either a proposed rule to update the standard or a determination that no change is warranted. If DOE publishes a proposed update, a final rule is due two years later. In addition, Congress set unique review schedules for a few products. As of March 2021, DOE has missed legal deadlines for twenty-eight product standards.