This Decision and Order considers an Appeal filed by American Electric Power Company, Inc. (AEP) from a determination issued on October 15, 1999, by the Office of Energy Efficiency and Renewable Energy (EE) of the Department of Energy (DOE), under provisions of 10 C.F.R. Part 490 (Alternative Fuel Transportation Program). In its determination, EE granted in part a request filed by AEP for an exemption from the firm’s 1998 and 1999 Model Year (MY) alternative fuel vehicle (AFV) purchase requirements under the Part 490 program. If the present Appeal were granted, AEP would be granted exemptions from its 1998 MY purchase requirements, in addition to those approved by EE in its determination. As set forth in this Decision and Order, we have concluded that AEP’s Appeal should be denied.