Posting Key Briefs in the SAFE Rule Preemption Case

The case, called Union of Concerned Scientists v. National Highway Traffic Safety Administration, pits the State of California and its allies (petitioners) against the Trump administration and its allies (respondents). Petitioners are asking the D.C. Circuit Court of Appeals to vacate the administration’s One National Program Rule, which is also Part 1 of the Safer Affordable Fuel Efficient (SAFE) Vehicles Rule.

A joint product of the Environmental Protection Agency (EPA) and National Highway Traffic Safety Administration (NHTSA), the One National Program Rule finalize two actions related to California’s tailpipe greenhouse gas (GHG) emission standards and zero-emission vehicle (ZEV) standards: