One of the rules California pulled after the EPA failed to approve it would have phased out the sale of new diesel-powered semi ... would have banned locomotive engines more than 23 years old ...

President-elect Trump has threatened to revoke or challenge all zero-emission vehicle rules and California’s other clean-air ...

SACRAMENTO, Calif. (AP) — California withdraws request to phase out diesel-powered semi-trucks and locomotives after Biden EPA stalls on approval.

The Environmental Protection Agency and California Air Resources Board have established that NOx and particulate emissions from diesel trucks have an adverse effect on health.

Although the proposal to limit diesel trucks in California has stalled, the state’s initiative to phase out the sale of gas-powered cars by 2035 is underway, as the EPA approved California’s ...

SACRAMENTO, Calif. (AP) — California withdraws request to phase out diesel-powered semi-trucks and locomotives after Biden EPA stalls on approval.