Environmental Protection Agency– and National Highway Traffic Safety Administration-proposed performance standards covering 2021–2027 model year heavy- and medium-duty trucks would achieve up to a 24 percent reduction of fuel consumption and carbon dioxide emissions when measured against a 2018 vehicle. The agencies address concrete mixers and dump trucks within a larger Vocational Vehicles category of heavy- and medium-duty models, representing what officials estimate is about 20 percent of fuel consumption in the transportation universe their proposal covers.
Read MoreEPA, DOT outline elevated fuel efficiency standards for trucks
