Gasoline-powered vehicles make up the largest single source of U.S. greenhouse gas emissions.
WASHINGTON — New vehicles sold in the U.S. will have to average about 38 miles per gallon of gasoline in 2031 in real-world driving, up from about 29 mpg this year, under new federal rules unveiled Friday by the Biden administration.
The final rule will increase fuel economy by 2% per year for model years 2027 to 2031 for passenger cars, while SUVs and other light trucks will increase by 2% per year for model years 2029 to 2031, according to requirements released by the National Highway Traffic Safety Administration.
The
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