This is just more lunacy from Obama, he thinks he can just mandate something be a certain way and it magically transforms. Obama has been pushing the private sector to move to natural gas, he has no clue what this might do to the fluctuating natural gas market, nor what it might do to home heating prices.
Obama: Natural Gas Is ‘Bridge Fuel’ for U.S.
As to increasing the fuel mileage of semi-trucks and buses, he has a arrogant and pompous notion that saving on fuel costs completely escaped the minds of all the thousands of heavy truck operators.
Global Pollution and Prevention News: New Truck Emission Standards and Controls
“Through new fuel-efficiency standards for trucks and buses, we will not only reduce transportation’s environmental impact, we’ll reduce the cost of transporting freight,” said U.S. Transportation Secretary Ray LaHood. “This is a win-win-win for the environment, businesses and the American consumer.”