In theUnited States there are about 140,000 natural gas vehicles fueled by about 1,000 public Natural Gas stations. Compare this figure to 180,000 for the conventional stations, it is forecasted in that heavy and light duty vehicles can have a large advantage due to the cheap price of Natural Gas. The US holds several incentive programs to the develop Natural Gas stations and vehicle conversions to accelerate the adoption of this fuel. Other countries have more developed natural gas vehicle markets. In the European Union, Italy is the leader with over 700,000 vehicles. Other leaders are in South America. Both Argentina and Brazil hold have more than 1,500,000 vehicles each.