This Decision and Order considers an Appeal filed by Cincinnati Gas & Electric Company (CG&E) from a determination issued on December 8, 1997, 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 partially denied a request filed by CG&E to receive credits under the Part 490 program for certain vehicles which the firm converted to alternative fuel vehicles (AFVs), but not within four months after acquisition as required under 10 C.F.R. § 490.305(c). If CG&E’s present Appeal were granted, the firm would receive credits for such vehicles (30) converted by the firm during the period September through December 1997. As set forth in this Decision and Order, we have concluded that CG&E’s Appeal should be granted in part.