California wants to move away from gas-powered cars. But fuel producers argue the state is acting as a "quasi-federal ...

The Supreme Court said it will wade into a case over whether California can set its own vehicle emissions standards under a ...

The justices agreed to decide whether industry groups have suffered the sort of injury that gave them standing to sue over an ...

The U.S. Supreme Court agreed on Friday to hear a bid by fuel producers to challenge California's standards for vehicle ...

The Supreme Court says it will take up a business-backed appeal that could make it easier to challenge federal regulations, ...

The Supreme Court indicated Friday that it will take up a case that could revive industry efforts to axe California’s ...

California wants to move away from gas-powered cars. But 'the Golden State is not the golden child,' 17 states complained to ...

Stepping into a legal fight that has been raging for years, the Supreme Court said it would decide whether California can set ...

The Supreme Court agreed Friday to decide whether religious affiliated entities like Catholic Charities should be exempt from ...

The Supreme Court on Friday said it would take up an appeal in a dispute related to California's leading standards for ...

The US Supreme Court will hear a clash stemming from California’s vehicle pollution limits, agreeing to decide whether ...

Supreme Court will consider whether oil industry may sue to challenge California's plan to require 'zero emissions' for new ...