If the Secretary determines, under section
13257
(f) of this title, that a fleet requirement program under section
13257 of this title 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—
to the extent necessary to achieve such goals of replacement fuel use and to ensure that the availability of alternative fuels and of alternative fueled vehicles are consistent with each other.