Fuel efficiency of U.S. cars and light trucks will nearly double by 2025 under a standard finalized by the Obama administration on Tuesday.
American vehicles will get 54.5 miles to the gallon in the new standard that aims to save consumers at the fuel pump, while cutting dependency on foreign oil imports and greenhouse gas emissions.
The rule, strongly opposed by Republicans and some car makers, builds on the standard for vehicles for model years 2011-2016, which requires automakers to raise average fuel efficiency to 35.5 mpg.
The standards finalized on Tuesday cover vehicles with model years 2017 to 2025. The rules are the result of more than a year of negotiations between the administration, automakers and environmental groups.
"These fuel standards represent the single most important step we've ever taken to reduce our dependence on foreign oil," President Barack Obama said in a statement.
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