For the current model year, standards enacted under Trump require the fleet of new vehicles to get just under 28 miles per gallon in real-world driving. The new requirements increase gas mileage by 8% per year for model years 2024 and 2025 and 10% in the 2026 model year.

New vehicles sold in the U.S. will have to average at least 40 miles per gallon of gasoline in 2026, up from about 28 mpg, under new federal rules unveiled

What are two benefits of the new miles-per-gallon requirements? Are these benefits in someone's self-interest or in the social interest? What are two benefits of the new auto-emission standards? What will additional costs be associated with the new miles-per-gallon requirements? What will additional costs be associated with the new auto-emission standards?