The United States finalizes lower vehicle fuel-economy standards through 2031.

Reuters reported that regulators estimate the revision will reduce manufacturer compliance costs by $1,289 per vehicle while adding roughly $1,600 in lifetime fuel costs for drivers. The government projects gasoline consumption will be 4.6% higher through 2050 than under the previous rule.

Automakers welcomed the lower compliance burden, while environmental groups criticized the expected increase in fuel use and emissions. The change reshapes product planning because companies will face less pressure to raise fleet efficiency as quickly.