EPA to begin work on proposed rulemaking for on-road heavy-duty ultra-low NOx standard for MY 2024
Green Car Congress
DECEMBER 23, 2016
Earlier this year, the US Environmental Protection Agency (EPA) received several petitions from state and local government agencies from across the country and other organizations to increase the stringency of the on-highway heavy-duty engine NO x emission standards from 0.2 grams per brake horsepower-hour (g/bhp-hr) to 0.02
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