Economy January 30, 2026

U.S. moves to roll back Biden-era fuel efficiency mandates for heavy-duty pickups and vans

Transportation regulators say prior rules for larger commercial vehicles were unrealistic and lack legal footing for penalties

By Avery Klein
U.S. moves to roll back Biden-era fuel efficiency mandates for heavy-duty pickups and vans

The U.S. Transportation Department announced plans to propose scaling back fuel economy requirements for heavy-duty pickup trucks and vans that were finalized under the previous administration. Regulators argued the earlier targets were unattainable for larger vehicles and that the prior administration lacked authority to set civil penalties. The move follows related proposals to ease light-duty fuel standards and comes with trade-offs in fuel costs and emissions according to agency estimates.

Key Points

  • The Transportation Department plans to propose rolling back heavy-duty pickup and van fuel economy standards that required 10% annual gains for 2030-2032 and 8% for 2033-2035.
  • NHTSA said the prior rules were unrealistic for larger vehicles and that the prior administration lacked legal authority to impose civil penalties for noncompliance; Administrator Jonathan Morrison said unrealistic standards "harm American consumers and business owners who use these commercial vehicles."
  • NHTSA estimates related light-duty changes would lower up-front vehicle costs for automakers by $930 on average but could raise fuel consumption by around 100 billion gallons through 2050, costing Americans up to $185 billion more for fuel and increasing CO2 emissions by about 5%.

The U.S. Transportation Department said on Friday it intends to propose a rollback of fuel economy standards for heavy-duty pickup trucks and vans that were finalized under the previous administration. The agency characterized the existing requirements as unrealistic for larger commercial vehicles and signaled plans to reset the rules.

Under the rules finalized in 2024, heavy-duty pickup trucks and vans were required to improve fuel efficiency by 10% per year for model years 2030-2032 and by 8% per year for model years 2033-2035. The Biden administration had said those standards would produce a fleetwide average of approximately 35 miles per gallon by model year 2035 and would save heavy-duty pickup and van owners more than $700 in fuel over the lifetime of their vehicles.

On Friday, the National Highway Traffic Safety Administration (NHTSA) told automakers in a letter that the standards were unrealistic and needed to be reset. The agency also said the prior administration lacked the legal authority to establish civil penalties for failing to meet standards for larger vehicles. NHTSA Administrator Jonathan Morrison said unrealistic standards "harm American consumers and business owners who use these commercial vehicles."

The Environmental Protection Agency under the prior administration had issued parallel rules for heavy-duty vehicles.

Industry groups had criticized the 2030 rules. The American Trucking Associations in 2024 described the 2030 requirements as "entirely unachievable given the current state of zero-emission technology, the lack of charging infrastructure and restrictions on the power grid."

The move to revisit heavy-duty standards follows a separate NHTSA proposal last month to substantially lower fuel economy targets for light-duty passenger cars and trucks. That proposal revised down the 2022 standards and then put forward a plan to increase them between 0.25% and 0.5% annually through 2031, with the agency saying the changes would make it easier for automakers to continue selling gasoline-powered cars.

NHTSA also noted its prior rulemaking actions taken under the previous administration. In 2022, the agency increased fuel efficiency requirements by 8% annually for model years 2024-2025 and by 10% for 2026.

Agency estimates accompanying the light-duty proposal indicated the rule would reduce average up-front vehicle costs for automakers by $930 but would increase fuel consumption by around 100 billion gallons through 2050. NHTSA estimated that additional fuel use could cost Americans up to another $185 billion and raise carbon dioxide emissions by about 5%.

On Friday, NHTSA said it aimed to move quickly to finalize the new regulation addressing heavy-duty pickups and vans. The agency noted last year’s legislation signed by the President ended fuel economy penalties for automakers for cars and trucks, and said manufacturers faced no fines dating back to the 2022 model year.


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Risks

  • Easing heavy-duty standards may delay adoption of zero-emission technologies for commercial vehicles, affecting the automotive manufacturing and charging infrastructure sectors.
  • Projected increases in fuel consumption and associated costs could raise expenses for households and businesses that rely on passenger vehicles, impacting consumer spending and transportation sectors.
  • Legal and regulatory uncertainty remains given NHTSA’s view that prior rules lacked authority to set civil penalties for larger vehicles, which could affect automaker compliance strategies and planning.

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