FILE - In this Oct. 30, 2014, file photo, Joe Warner fills up his tank at a gas station in Atlanta. A few months ago, the hope was that consumers, fueled by job growth, cheaper gas and higher home values, would drive the U.S. economy through a global slump. Now, doubts are growing that the United States can withstand economic pressures from overseas. (AP Photo/David Goldman, File)

DETROIT | The U.S. government says the fuel economy of the nation’s fleet of cars and trucks likely won’t meet its targets in 2025 because low gas prices have changed the types of vehicles people are buying.

Under standards set in 2012, automakers’ fleets were expected to get an average of 54.5 miles per gallon by 2025. But in a report issued Monday, the government says that’s more likely to be between 50 miles per gallon and 52.6 miles per gallon.

A summary of the report — by the U.S. Environmental Protection Agency, the U.S. Department of Transportation and the California Air Resources Board — was obtained by The Associated Press.

The report is part of a review that will decide whether to relax the standards or keep them in place.