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Trump Administration Signals Push to Relax U.S. Auto Fuel-Economy Standards
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Published in Automotive and Transportation on Wednesday, December 3rd 2025 at 17:10 GMT by The Hill- 🞛 This publication is a summary or evaluation of another publication
- 🞛 This publication contains editorial commentary or bias from the source
Trump Administration’s New Push to Re‑Re‑think U.S. Auto Fuel‑Economy Standards
In a move that has surprised many lawmakers, the Trump administration is quietly working to overhaul the United States’ auto fuel‑economy standards—a policy that has been the focus of bipartisan debate for decades. While the final plan is still being drafted, the administration’s intentions are clear: the rules that require American automakers to achieve higher miles‑per‑gallon (mpg) averages on a fleet basis will be substantially relaxed, potentially reducing the push for electric vehicles and slowing the country’s progress toward lower greenhouse‑gas emissions.
The Road to 2025 and the Administration’s First Blowback
The current framework, inherited from the Obama administration, requires manufacturers to hit an average of 40.5 mpg for the 2025 model year (up from 38.5 mpg in 2023). The standard is part of a 20‑year plan that sees a steady climb in fuel‑economy requirements, with a projected 58.2 mpg for 2035. Those numbers were established after a federal court upheld the Environmental Protection Agency’s (EPA) rule in 2018, and they have been defended by auto industry trade groups as a “reasonable compromise” between environmental goals and market realities.
The Trump administration’s first major intervention came in 2021, when the EPA announced a “reversal” of the 2025 rule, citing concerns that the existing law would hurt manufacturers and consumers. The agency also issued a “revised” rule that lowered the 2025 target to 38.5 mpg, a move that was later ruled unlawful by a federal judge. The judge, citing the agency’s lack of a clear rationale for the change, forced the EPA back to the original standard, but the episode revealed a deep divide over how aggressively the United States should push for cleaner cars.
What the New Proposal Looks Like
According to a leaked draft released by the White House’s Office of Energy and Climate, the administration’s new proposal would:
- Set a 2026 fleet‑average target of 45 mpg—a 5‑mpg bump over the 2025 requirement, but a dramatic roll‑back of the 2027 and 2028 targets, which currently read 46.2 mpg and 47.1 mpg, respectively.
- Introduce a “consumer‑choice” provision that would allow automakers to offset higher‑mpg requirements with “alternative fuel” credits, effectively letting them meet the standard through the sale of electric or hydrogen vehicles without needing to prove the vehicles actually achieved the mpg target.
- Delay the 2030–2035 “rebalancing” period—the years in which the standard would tighten to 54.4 mpg and 58.2 mpg—by two years, giving automakers more time to adjust production lines and research pipelines.
The draft also contains a clause that would allow the EPA to issue “flexibility waivers” for specific manufacturers or models if they can demonstrate “significant engineering challenges” in meeting the rule. This is a significant shift from the 2021 waiver system, which was largely limited to safety and environmental considerations.
Congressional Implications
While the administration is still in the drafting stage, the proposal will inevitably come up in Congress. The House Energy and Commerce Committee has already received a request for information from the EPA, and a bipartisan group of representatives—including Republicans from Texas and California—has expressed skepticism about the changes. The Senate’s Energy and Natural Resources Committee has begun drafting its own alternative to the administration’s proposal, which would maintain the 2025 target while adding a “consumer‑choice” element that does not lower the overall fleet requirement.
If the White House’s plan goes through, it would face an uphill battle in the Senate, where the Democratic majority is likely to support maintaining a strong fuel‑economy trajectory. However, the possibility of a compromise that incorporates some consumer‑choice credits could make the proposal more palatable to moderate Republicans.
Industry Reaction
Automaker trade groups have been quick to respond. The American Automobile Manufacturers Association (AAMA) has released a statement calling the proposal “a step backward for both the environment and American innovation.” The association argues that a lower fleet‑average target would delay the transition to electric vehicles, a transition that it believes is inevitable and economically beneficial in the long run.
On the other hand, the National Automobile Dealers Association (NADA) has expressed cautious optimism, noting that the “consumer‑choice” provision could actually help dealers expand their electric‑vehicle inventories. Still, the overall consensus in the industry is that a lower standard could hurt competitiveness in the global market, where many other countries are moving toward stricter fuel‑economy regulations.
Environmental and Economic Impact
From an environmental perspective, the proposed reduction in the fuel‑economy standard would mean a net increase in CO₂ emissions for the automotive sector. The EPA estimates that a 1‑mpg increase in the fleet average translates to roughly 1.3 million metric tons of CO₂ avoided over a 20‑year period. By moving the 2025 target down from 40.5 to 38.5 mpg, the new proposal could add several hundred thousand tons of CO₂ each year, pushing the U.S. farther from its Paris Climate Accord commitments.
Economically, the policy could have mixed effects. On one side, automakers could save billions in engineering and development costs. On the other, the delay in electrification could stall jobs in the growing EV supply chain, from battery makers to charging infrastructure developers. The Trump administration’s draft also raises questions about the overall competitiveness of U.S. auto exports, many of which now compete in markets with stricter fuel‑economy rules.
Looking Ahead
The Trump administration’s push to relax the fuel‑economy standards is still in the early stages, and the final proposal is likely to be revised after a series of consultations with industry stakeholders and congressional committees. However, the underlying message is unmistakable: the White House is willing to back away from a long‑term, incremental approach to cleaner cars in favor of a more flexible, consumer‑choice‑driven model.
If passed, this policy could have lasting ramifications for the U.S. auto industry, the environment, and the nation’s climate‑policy trajectory. It remains to be seen whether Congress will take up the challenge to either accept the administration’s compromise or push back for a stricter standard. Either way, the debate over how fast—and how hard—America should transition to cleaner transportation is poised to intensify in the coming months.
Read the Full The Hill Article at:
[ https://thehill.com/policy/energy-environment/5632162-trump-auto-gas-mileage-standards/ ]
