CARB Rejects Industry Call To Align Truck Rule With EPA’s, Citing Benefits

California air board officials appear to be rejecting industry calls to align their landmark heavy-duty truck standards with EPA’s comparable, but less-stringent national standards for model year 2027 and later vehicles, arguing it would significantly reduce the expected nitrogen oxide (NOx) emission cuts to be achieved. Citing new estimates, officials argued that certain compliance flexibilities in EPA’s rule would undercut the NOx emissions reductions the state’s rules are slated to achieve if they were to align the two programs. “The...