This report summarizes the Phase I tasks of ASHRAE Research Project, RP-427, "Determination of Validity of Refrigerator/Freezer Energy Testing", which has been completed by the Energy Research Laboratory at the University of Missouri-Kansas City. Refrigerators, refrigerator/freezers, and freezers sold in the United States are currently required to display a Federal Trade Commission (FTC) label which lists the estimated yearly energy cost of operating the appliance.