DOE sets energy conservation standards for roughly 60 household and commercial products under the Energy Policy and Conservation Act (EPCA). However, Congress has not updated EPCA since 2007, when it expanded many of the efficiency requirements for covered products. DOE regulates covered products through product classes. • Strengthen EPCA’s preemption of state laws that set standards for covered products that are inconsistent with federal standards. Some states have passed laws banning covered products based on their fuel source, or imposing state standards where federal standards have been repealed.