The United States unveiled fuel-efficiency and greenhouse gas emission standards for long-haul trucks, heavy- and medium-duty work trucks, buses and other heavy-duty vehicles requiring mileage improvements of 9 percent to 23 percent, depending on the category.

Looking ahead to 2012, it is unclear whether Congress will continue to fund the U.S. Environmental Protection Agency’s (EPA) National Clean Diesel Funding Assistance Program. National AGC helped its interested chapters win millions in federal funds to support AGC members’ voluntary “retrofit” projects.