The natural gas infrastructure for vehicles is already in place. Every city of any size in America has natural gas. Our problem has been getting compressors installed at service stations. We have already purchased natural gas vehicles made at the factories. Natural gas utilities already use Compressed Natural Gas (CNG) in their vehicles. Some city buses and trucks already run natural gas. A few years ago Auburn, Alabama switched all their city vehicles to CNG. Problems arose with the police cars in high speed chases. All their vehicles were equiped with dual fuel, both gasoline and CNG. If a police car was crusing around using CNG, and got into a high speed chase, and ran out of CNG, sometimes during the switchover the engine would stall out, have to be restarted with gasoline. So they quit using CNG in police cars. New technology has them switching automatically if you run out of CNG. We order our vehicles from GM and Ford already made at the factories. Before a service station agrees to install CNG, there must be a fleet of vehicles to use it so they can make money refueling. So, fleets of utilities, UPS, Fedex, postal delivery, city garbage trucks, school buses, and city buses must agree to convert first. With some type of federal tax incentive, they will. Once most fleets use CNG, then it will trickle over to private vehicles. You can already buy a home compressor to take the gas you get at your home, compress it for your own CNG vehicle. It is about the size of a water heater. Range for dual fuel trucks that my company uses is about 100 miles on CNG before switching to gasoline. This keeps us using about 90% CNG. CNG can also be blended with diesel where a diesel engine uses as little as 10% diesel (for lubrication) and 90% CNG. CNG is abou t$1.85 per gallon of gasoline equivelant, and we only import about 2% of natural gas, from Canada.