California has decided to abandon its phase out of diesel trucks and requiring cleaner locomotives because of the incoming Trump administration.

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 ...

The state withdrew its pioneering clean air regulations for diesel trucks and trains, acknowledging they wouldn’t win federal approval. The state intended to end sales of trucks powered by fossil ...

Citing expected opposition from the incoming Trump administration, California withdrew its federal waiver petitions to enact ...

Congressman Doug LaMalfa releaseda statement regarding the California Air Resources Board’s decision to withdraw its Clean ...

The Supreme Court recently rejected challenges to California's emissions regulations, supporting the state's decision to ...