Automakers back Trump administration rollback of fuel economy rules

Key facts

• The Alliance for Automotive Innovation backed the administration in the states' challenge to the lower standards.
• The group represents General Motors, Toyota, Volkswagen and other major automakers.
• The group said automakers require certainty and stability in the standards.
• The Transportation Department said it was finalizing a 34.9 miles per gallon fleetwide average by 2031.
• The 2024 standard approved under then President Joe Biden was 50.4 miles per gallon.

The Alliance for Automotive Innovation, a group representing General Motors, Toyota, Volkswagen and other major automakers, backed the Trump administration in a legal challenge to its lower vehicle fuel economy standards, according to a Reuters report dated November 2. The challenge was filed by California and other states.

The group said automakers require certainty and stability in the standards. The report did not give the date of the group's filing.

The US Transportation Department said in October 2026 that it was finalizing a fleetwide fuel economy average of 34.9 miles per gallon by 2031. That compares with 50.4 miles per gallon approved in 2024 under then President Joe Biden.