Alternative fuel vehicle infrastructure refers to the supporting infrastructure such as fueling stations and specialized support that are needed to run alternatively fueled vehicles. Gasoline stations, both with and without diesel, are abundant in OECD countries, but fueling for alternative fuel vehicles requires different infrastructure. This supporting infrastructure mainly includes fueling station and maintenance centers. Many gasoline stations could provide many of these alternatives as well, but don't yet. Fueling station makes the energy currency accessible to public and the technology can be used at more locations. In the U.S., the number of electric fueling stations have increased over the past few years (see figure 1), while hydrogen refueling stations and Natural gas refueling stations are limited. Figure below shows the growth in fueling stations for various technologies. This is much less than the 121,000 gasoline stations in the US. In 2016 (the most recent data the team could find) there were roughly 8 times as many traditional gasoline stations as AFV recharging stations, but that ratio will probably continue to drop.