From Environmental Leader
“The U.S. Environmental Protection Agency (EPA) and the U.S. Department of Transportation (DOT) have unveiled the first national standards to reduce greenhouse gas (GHG) emissions and improve fuel efficiency of heavy-duty trucks and buses. The new proposed standards are for three categories of heavy trucks: combination tractors, heavy-duty pickups and vans, and vocational vehicles.
“The EPA and DOT sent draft rules to the White House in August.
“The program, proposed by EPA and DOT’s National Highway Traffic Safety Administration (NHTSA), is projected to reduce GHG emissions by about 250 million metric tons and save 500 million barrels of oil over the lives of the vehicles produced within the program’s first five years.
“For combination tractors, the agencies propose engine and vehicle standards that begin in the 2014 model year and achieve up to a 20 percent reduction in carbon dioxide (CO2) emissions and fuel consumption by 2018 model year.
“For heavy-duty pickup trucks and vans, the proposal calls for separate gasoline and diesel truck standards, which phase in starting with 2014 model year and cut emissions and fuel consumption 10 percent for gasoline vehicles and 15 percent for diesel vehicles by 2018 model year (12 and 17 percent respectively if accounting for air conditioning leakage).
“For vocational vehicles, the agencies propose engine and vehicle standards starting in 2014 model year, which would reduce CO2 emissions and fuel consumption 10 percent by 2018 model year.
“Overall, the heavy-duty national program would provide $41 billion in net benefits over the lifetime of model year 2014 to 2018 vehicles, together with the potential for fuel efficiency gains, ranging from seven to 20 percent.”