Many agencies purchase alternative fuel vehicles (AFVs) and place them where no alternative fuel vehicle is available. These AFVs frequently are less fuel efficient than a comparable gasoline or diesel vehicle when operated on petroleum. This means that many AFV acquisitions cost the government money while increasing petroleum use.
Place AFVs where alternative fuel exists currently, or will soon (while the government owns it) be available. Use the money not spent on AFVs to pay for publicly available alternative fuel infrastructure, hybrids, and fleet management improvements.
DOE is currently piloting a tool which will help agencies do just that. To match the right vehicle with the job, require agencies to collect and maintain data on vehicle utilization.