Ultra Low Sulfur Diesel Fuels (ULSD) has been created to address emission problems. This new type of diesel fuel is now being used in many countries including Canada. The fuel was introduced to reduce sulfur levels by 97%, and in turn, reduces particulate matter emissions.
Public interest in energy conservation, as well as a desire by governments to reduce their own fuel costs has lead to increased interest in alternative fuels. The United States military has mandated a 20% blend of biodiesel be used in much of its equipment. The Canadian government has set a goal for 2% renewable fuel content to be added to diesel supplies by 2012. Of the near 26,000 Federal Government vehicles in use, around 1,400 have been adapted to alternative fuels or replaced with hybrid vehicles.