Environmental groups sue Trump administration over vehicle MPG rollback
Reducing fuel-efficiency standards will raise prices at the pump and produce more harmful emissions, according to environmentalists.
Last updated: 2026-10-04 23:06:39 ET
Reducing fuel-efficiency standards will raise prices at the pump and produce more harmful emissions, according to environmentalists.
Regulators estimate the new rules will result in an average of 34.9 miles per gallon by model year 2031, down from an earlier projection of 50.4 mpg.
New CAFE rules cut the 2031 fleet target to 34.5 mpg, reshaping how US automakers balance trucks, hybrids, and future efficiency tech.
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