California Air Resources Board

The California Air Resources Board (CARB), joined by the California Attorney General’s Office, submits the attached comments on the collective reconsideration by the U.S. Environmental Protection Agency (EPA) and the National Highway Traffic Safety Administration (NHTSA) of the Final Determination of the Mid-Term Evaluation of Greenhouse Gas Emissions Standards for Model Year (MY) 2022-2025 Light-Duty Vehicles, and of the preceding MY 2021 Greenhouse Gas Emissions Standards. The latest information affirms the January 2017 Final Determination: the one national program for controlling greenhouse gas emissions and setting fuel economy standards is working as intended, and technology development has been faster than expected at lower costs than predicted.