Summary

New Transportation Secretary Sean Duffy has ordered an immediate rollback of U.S. fuel efficiency regulations, targeting stricter standards set by the Biden administration.

Duffy argues that weakening emissions rules will lower car costs and expand consumer choice.

The memo also seeks to revoke California’s right to set its own air quality standards and criticizes EV subsidies.

This move aligns with Trump’s broader push to dismantle climate policies, including a recent ban on federal purchases of zero-emissions vehicles.

Environmental groups are expected to challenge the changes.