What did President Donald Trump say about approving new Corporate Average Fuel Economy (CAFE) standards, how would they reverse the Biden-era requirement for passenger cars and light trucks to reach roughly 50 miles per gallon by 2031, what remains unknown about the final rules,

President Trump said he had approved new Corporate Average Fuel Economy (CAFE) standards that would “TERMINATE” what he called the Biden administration’s EV mandate. He claimed they would lower car prices and help build cars in America; those are predictions, not established effects of the unreleased rule. 75

• What changes: The Biden-era standards called for the average fuel economy of new passenger cars and light trucks to reach roughly 50 miles per gallon by 2031. The planned rollback would set substantially weaker requirements through 2031, reducing pressure to improve gasoline-vehicle efficiency or sell more hybrids and EVs. CAFE standards govern manufacturers’ fleets; they do not require every vehicle to achieve 50 mpg or buyers to purchase an EV. 428
• What remains unknown: Trump’s announcement did not disclose the final mpg targets or the full rule. Until those details are published, the size of the rollback and its effects cannot be pinned down. 812
• Likely trade-offs: Less costly compliance could give automakers more room to sell profitable pickups and SUVs and could reduce some new-vehicle costs, but it does not guarantee lower sticker prices or more U.S. manufacturing. Weaker standards would also reduce the regulatory incentive to make EVs and could mean more fuel consumption—and higher fuel costs for drivers—over time. 28