((a)) ** Recommendations to require availability or acquisition** If the Secretary determines, under , that a fleet requirement program under is not necessary, the Secretary shall so notify the Congress. If the Secretary so notifies the Congress, the Secretary shall, within 2 years after such notification and by rule, prepare and submit to the Congress recommendations for requirements or incentives for—

((1)) fuel suppliers to make available to the public replacement fuels, including providing for the construction or availability of related fuel delivery systems;

((2)) suppliers of alternative fueled vehicles to make available to the public alternative fueled vehicles and to ensure the availability of necessary related services; and

((3)) motor vehicle drivers to use replacement fuels,

((b)) ** Fair and equitable application** In carrying out this section, the Secretary shall recommend the imposition of requirements proportionately on all appropriate fuel suppliers and purchasers of motor fuels and suppliers and purchasers of motor vehicles in a fair and equitable manner.