The California Air Resources Board (CARB) has withdrawn its request for a federal waiver to phase out diesel trucks and force fleet operators to transition to zero-emission vehicles, including hydrogen-powered models.
CARB withdrew the waiver request for the Advanced Clean Fleet (ACF) rule on January 13, which would have seen the phase-out of new diesel-powered semi-trucks and buses by 2036.
Additionally, CARB proposed to ban the use of locomotive engines older than 23 years by 2030 to decarbonise the freight rail system and introduce new zero-emission technologies.
However, after the EPA failed to approve the acts in time, which were opposed by industry members due to costly mandates, CARB pulled the waiver.
