The Trump administration has announced plans to significantly lower fuel economy standards for cars and light trucks sold in the United States, a move that could reshape the automotive industry and spark renewed debate over environmental policy. This latest proposal aims to roll back efficiency requirements, potentially impacting vehicle prices and consumer choices.
Under the proposed changes, unveiled on Wednesday, the fleet-wide fuel economy target for 2031 model-year vehicles would be reduced to 34.5 miles per gallon (mpg). This marks a substantial rollback from the 50.4 mpg standard previously mandated by the Biden administration for the same period. The new regulation also reclassifies crossovers as cars, rather than light trucks, a change that could impact how automakers meet compliance. The announcement was made with CEOs from Ford and Stellantis reportedly in attendance.
These fuel economy rules fall under the Corporate Average Fuel Economy (CAFE) Standards, which are regulated by the National Highway Traffic Safety Administration (NHTSA). First enacted by Congress in 1975, CAFE Standards dictate how far vehicles must travel on a gallon of fuel. Former President Trump also indicated he would authorize the Department of Transportation to permit automakers to produce "really small cars," similar to those found in Japan and South Korea.
The White House argues that existing regulations would lead to an increase of $1,000 per vehicle in automotive prices, echoing a similar justification made during the previous Trump administration's 2020 rollback of fuel economy standards. However, since that 2020 decision, the average price of a new vehicle has climbed to new heights, now exceeding $50,000. This increase is largely attributed to automakers discontinuing lower-end models to capitalize on consumer preferences for larger SUVs, which typically use more materials, cost more to manufacture, and offer lower fuel economy.
This trend appears to contradict the administration's assertion that lower fuel economy targets serve the car-buying public's best interests. For example, hybrid vehicle sales have seen a significant surge this year, with momentum continuing. October alone saw a 6% increase in hybrid sales over the previous month, indicating a strong consumer demand for more efficient vehicles.
Experts largely doubt that reduced fuel economy standards will alter the upward trajectory of new vehicle prices. Many vehicles are developed with global markets in mind, where efficiency remains a highly valued attribute.
“The rest of the world will continue to innovate and create cleaner cars that people want to buy and drive, while we’re forced to sit in our clunkers, paying more for gas, and pumping out more tailpipe emissions,” said Gina McCarthy, former EPA administrator. “With their backwards thinking and never-ending efforts to create more pollution in this country, we are ceding the global car market and technological innovation to China.”
Furthermore, the effectiveness of fuel economy standards has been diminished since the passage of the "One Big Beautiful Bill Act" this summer, which eliminated penalties for automakers failing to meet their targets. This regulatory move is therefore seen by many as a strategic hurdle designed to prevent future administrations from re-implementing stricter standards.
Already, some automakers have begun shifting towards selling more gas-guzzling vehicles. Ford, for instance, has indefinitely paused production of its electric F-150 Lightning pickup truck, reallocating capacity to internal combustion models. Similarly, Stellantis has reintroduced its Hemi V-8 engines, despite reviews indicating that the powertrain in the Ram 1500 performs worse than a more efficient inline-6.
However, not all automakers are reversing course. Hyundai is still committed to electric vehicles (EVs), while its sibling brand Kia has offered substantial discounts, up to $10,000, across its EV lineup.
