Trump Administration Finalizes Rule Weakening Car Fuel Efficiency Standards

The U.S. Department of Transportation finalized its plan today to weaken vehicle fuel efficiency standards, characterizing it as "among the largest deregulatory actions under the second Trump Administration." This move effectively dismantles the previously proposed Biden-era standards, which would have mandated a fleet average fuel economy of 50.4 miles per gallon by model year 2031.

President Donald Trump's finalized rule requires a fleet average of 34.9 miles per gallon, a modest increase from the 30.1-mile-per-gallon target set for model year 2024. The administration claims this change will reduce the average cost of a new car by approximately $1,300.

Consumer advocacy, health, and environmental groups have expressed strong opposition to the decision. Critics argue that the relaxed standards will result in increased fuel consumption, higher emissions, and potential public health risks.

While the Trump administration asserts that the rule will support the auto industry and lower costs for consumers, opponents contend that the long-term environmental and health consequences outweigh any short-term economic benefits. The decision marks a significant shift in U.S. automotive environmental policy.