WASHINGTON, Sept 12 (Reuters) - U.S. car dealers and private sellers may now post window labels on used vehicles that show gas mileage and climate-warming carbon dioxide emissions under a federal ...

The U.S. government has come up with window labels that show the gas mileage and pollution of used cars. The Energy Department and the Environmental Protection Agency ...

The U.S. government has come up with window labels that show the gas mileage and pollution of used cars. The Energy Department and the Environmental Protection Agency say the labels can be downloaded ...