In order for California to promulgate vehicle emission standards without violating the Clean Air Act, it must receive a waiver from the EPA for any state law that regulates vehicles covered by the Act ...

CARB's decision to back down on a regulatory proposal that would have required trucking companies to gradually add ...

The EPA had yet to grant a waiver for CARB’s requests, which were expected to face opposition from president-elect Trump.

California is no longer seeking to enforce ACF, which would have required fleets to phase in ZEVs. The state is withdrawing ...

The California Air Resources Board has withdrawn its request for a waiver to implement the Advanced Clean Fleets rule.

California proposed a new clean car rule today ... on Friday to call on CARB to reach 100% zero-emission vehicle sales by 2030, set strong pollution standards for gas-powered cars, and ensure access ...

Because Trump is unlikely to approve them, California has no choice but to abandon its groundbreaking rules for zero-emission ...