EPA’s Light Duty Vehicle Emissions Standards for MY 2023-2026

In December 2021, EPA finalized revised national GHG emissions standards for passenger cars and light trucks for Model Years 2023- 2026. The final standards would achieve significant GHG emissions reductions along with reductions in other criteria pollutants, and are the strongest vehicle emissions standards ever federally established for the light-duty vehicle sector. The final rule significantly accelerates the rate of stringency increases to between 5 and 10 percent each year from 2023 through 2026. Under the previous standards stringency increased at a rate of roughly 1.5 percent per year. These final standards are expected to result in average fuel economy label values of 40 mpg, while the standards they replace (the SAFE rule standards) would achieve only 32 mpg in MY2026.

EPA projects that the updated standards will result in avoiding more than 3 billion tons of GHG emissions through 2050.