“ In procurement actions for unleaded gasoline motor fuel, Federal agencies shall, whenever feasible, specify that gasohol is an acceptable substitute motor fuel. In such procurements there shall be a preference for the purchase of gasohol. ”

“ Agencies shall designate those vehicles which are capable of using gasohol, consistent with overall agency needs and sound vehicle management practices. Agencies shall specify the conditions governing the use of gasohol, including when gasohol shall be purchased from normal retail outlets by vehicle operators. ”

“ Such guidelines shall provide for a determination of reasonable prices and reasonable quantities based on the local prevailing price of unleaded gasolines, the octane requirements for vehicles in the Federal fleet, local market availability of gasohol or its components, and other such factors, as may be appropriate. ”