As EPA Rules Face Repeal, NHTSA Floats Major Rollback To Vehicle Limits

The National Highway Traffic Safety Administration (NHTSA) is proposing a significant rollback of fuel economy standards stretching as far back as model year 2022, triggering a new administrative battle over changes to a program that has increasing salience given EPA’s looming final rule to scuttle all of its vehicle greenhouse gas rules. NHTSA’s Dec. 3 proposal builds on a prior interpretive rule that concluded that the Biden administration improperly factored electric vehicles (EVs) into the baseline for the fuel economy...