The rule would require the U.S. car and light truck fleet to improve its average fuel efficiency by 1.5 percent per year between model years 2021 and 2026, compared to a nearly 5 percent annual increase under current law.
The rule would require the U.S. car and light truck fleet to improve its average fuel efficiency by 1.5 percent per year between model years 2021 and 2026, compared to a nearly 5 percent annual increase under current law.