The 2023 Market Brief illustrates much more about the future, one where new diesel engine development programs are moving towards sunsetting, and zero-emission vehicles (ZEVs) will be the “law of the land” in states representing around half of the U.S. economy. The past 18 months have laid the roadmap for a zero-emission (ZE) future in many states and produced early signals that the era of the diesel engine, the workhorse of HD vehicles, will sunset sooner than many predicted.
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