The Supreme Court ruled Friday that fuel producers have standing to challenge EPA approval of California vehicle emissions and electric vehicle policies. Why it matters: The 7-2 decision enables more lines of attack against California officials,

It’s unclear what impact the justices’ ruling will have on carmakers who must adjust to market conditions as the state's vehicle emissions standards have flip-flopped between administrations.

The Supreme Court on Friday revived a lawsuit from fuel producers challenging California’s strict vehicle emission rules, allowing the companies to fight an on-again, off-again climate policy that President Donald Trump has previously opposed.