Trump administration lowers federal fuel economy target
The Trump administration reduced the fleetwide fuel economy standard from the Biden-era target of 50.4 mpg by 2031 to 34.9 mpg. Officials said the change would reduce car costs, while critics warned of higher gasoline expenses, increased pollution, and climate impacts. The rollback follows a provision in the president's Big Beautiful Bill that eliminated penalties for noncompliance.
The administration replaced the prior 2031 fleet average of 50.4 miles per gallon with a 34.9 mpg target. It says this approach can lower vehicle prices. Opponents counter that drivers may pay more at the pump and that emissions and climate effects could grow.
The shift follows a change in the president's Big Beautiful Bill that set noncompliance penalties at zero. Although that provision had already weakened enforcement, the new target removes the stricter Biden-era requirement itself, so automakers are no longer legally bound to meet it.
Drivers may see lower upfront vehicle costs, but could face higher fuel spending over time. Automakers might gain flexibility in model planning, while workers and suppliers could be affected by shifts in production. Communities may experience different pollution levels, and the policy could influence long-term climate emissions. The overall effect may depend on fuel prices, consumer choices, and how automakers respond.