On March 30, 2020, the National Highway Traffic Safety
Administration ("NHTSA") and Environmental Protection
Agency ("EPA") finalized the Safer Affordable Fuel-Efficient ("SAFE")
Vehicles Rule (the "Rule"). Under the Rule, EPA
amends carbon dioxide ("CO2") standards for
passenger cars and light trucks for model years ("MYs")
2021 and later, while NHTSA amends corporate average fuel economy
("CAFE") standards for MY 2021 and sets new CAFE
standards for MYs 2022-2026.
The first part of the Rule, finalized on September 19, 2019, and
entitled the One National Program Rule, asserts that the
Energy Policy and Conservation Act ("EPCA") gives the
United States Department of Transportation the right to set
national fuel economy standards and preempts similar state
programs. The second part of the Rule, issued on March 30, 2020,
finalizes the regulatory text related to preemption under EPCA and
withdraws a waiver previously provided to California under the
Clean Air Act