General Motors, Fiat Chrysler, Toyota and many others in the auto industry are siding with the Trump administration in a lawsuit over whether California has the right to set its own greenhouse gas emissions and fuel economy standards.

The Trump administration's decision to stop California from setting its own emission standards for cars and trucks would undermine the state's ability to convince the world's largest automakers that they should make more environmentally friendly vehicles.

WASHINGTON (AP) — The Trump administration is poised to revoke California's authority to set auto mileage standards, asserting that only the federal government has the power to regulate greenhouse gas emissions and fuel economy.

The U. S. Environmental Protection Agency is making Volkswagen Group correct fuel economy labels for about 98,000 gasoline-powered vehicles. The revisions of about one mile per gallon (0. 4 kilometer per liter) cover VWs as well as affiliated brands Audi,...

DETROIT (AP) — Four major automakers have reached a deal with California to increase gas mileage and greenhouse gas emissions standards, bypassing the Trump administration's plan to freeze standards at 2021 levels. Ford, BMW, Honda and Volkswagen are parties to...

New vehicles in the U. S. from the 2017 model year averaged slightly better gas mileage than the previous year, rising to a record 24. 9 mpg, according to an annual report from the Environmental Protection Agency. But the mileage...

Ford Motor Co. has launched an investigation into whether it overstated gas mileage and understated emissions from a wide range of vehicles. The company says that in September, a group of employees reported possible problems with a mathematical model used...