Energy Star® Qualified is your assurance that products meet the energy efficiency standards set by the US Department of Energy (DOE). These standards are established based on climate in four regions in the US. To be Energy Star® Qualified the product must meet DOE standards in tests conducted by an independent laboratory. Products labeled Energy Star® Certified/Rated only indicate that the product has been tested by an independent laboratory. This label does not indicate that the product meets DOE energy efficiency standards.