politicsUnited States
Trump fuel economy rollback faces lawsuits from states and groups
The Trump administration’s rollback of US fuel economy standards faces lawsuits from 26 states and progressive climate groups. The rollback sets a 34.9 mpg fleet average by 2031, compared with 50.4 mpg under Biden-era rules.
50.4mpg
Required fleetwide fuel economy under the Biden-era rules was scheduled to reach about 50.4 mpg by 2031.