Federal legal challenge threatens California's EV rules
A long-used federal law that let California set stricter vehicle emissions rules is facing a court challenge that could block the state's plan to stop sales of new gas-powered cars.
An often-used federal law that allowed California to set its own vehicle emissions standards is being challenged in court this month. If the challenge succeeds, it could bar the state from meeting its goal of banning sales of new gas-powered vehicles and slow its shift to electric vehicles.