Tag Archives: nitrogen oxide emissions

CARB Delays ZEV Requirements for Truck Fleets

Posted on 26 September 2025 by Ken Zino

Heavy-duty vehicle public fleet owners subject to California’s Advanced Clean Fleet (ACF)* regulation have new flexibility in meeting the regulation’s requirements along with streamlined processes for applying for exemptions. The California Air Resources Board (CARB) approval of amendments to ACF yesterday that will help state and local fleets continue introducing zero-emission vehicles (ZEVs) to their fleets while “providing clarity, certainty and flexibility in ACF’s implementation.”

“Today’s approval of amendments to ACF – a critical component in the state’s efforts to achieve emissions reductions for a healthier future for all residents – keeps California advancing towards the cleanest fleet in the nation and provides flexibilities to help ensure a smooth implementation,” said CARB Chair Liane Randolph. Continue reading →

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Zero-Emissions Truck Sales Soar in California

Posted on 24 October 2023 by Ken Zino

“The report makes several important points: users are interested in adopting zero-emissions technology; several manufacturers are stepping up to meet that market interest; and the flexibility that we built in to allow for a phased-in transition toward a zero-emissions future is working,” said Dr. Steven Cliff, CARB’s Executive Officer. “Helping the businesses that rely on trucks to transport goods across the state switch to zero emissions is key to achieving a clean air future, and the data show that progress is well underway.” Continue reading →

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